---
_id: '14886'
abstract:
- lang: eng
text: It is a basic principle that an effect cannot come before the cause. Dispersive
relations that follow from this fundamental fact have proven to be an indispensable
tool in physics and engineering. They are most powerful in the domain of linear
response where they are known as Kramers-Kronig relations. However, when it comes
to nonlinear phenomena the implications of causality are much less explored, apart
from several notable exceptions. Here in this paper we demonstrate how to apply
the dispersive formalism to analyze the ultrafast nonlinear response in the context
of the paradigmatic nonlinear Kerr effect. We find that the requirement of causality
introduces a noticeable effect even under assumption that Kerr effect is mediated
by quasi-instantaneous off-resonant electronic hyperpolarizability. We confirm
this by experimentally measuring the time-resolved Kerr dynamics in GaAs by means
of a hybrid pump-probe Mach-Zehnder interferometer and demonstrate the presence
of an intrinsic lagging between amplitude and phase responses as predicted by
dispersive analysis. Our results describe a general property of the time-resolved
nonlinear processes thereby highlighting the importance of accounting for dispersive
effects in the nonlinear optical processes involving ultrashort pulses.
acknowledgement: The work was supported by the Institute of Science and Technology
Austria (ISTA). We thank Prof. John M. Dudley, Dr. Ugur Sezer, and Dr. Artem Volosniev
for valuable discussions.
article_number: '013042'
article_processing_charge: Yes
article_type: original
author:
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: 'Lorenc D, Alpichshev Z. Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect. Physical Review Research. 2024;6(1). doi:10.1103/PhysRevResearch.6.013042'
apa: 'Lorenc, D., & Alpichshev, Z. (2024). Dispersive effects in ultrafast nonlinear
phenomena: The case of optical Kerr effect. Physical Review Research. American
Physical Society. https://doi.org/10.1103/PhysRevResearch.6.013042'
chicago: 'Lorenc, Dusan, and Zhanybek Alpichshev. “Dispersive Effects in Ultrafast
Nonlinear Phenomena: The Case of Optical Kerr Effect.” Physical Review Research.
American Physical Society, 2024. https://doi.org/10.1103/PhysRevResearch.6.013042.'
ieee: 'D. Lorenc and Z. Alpichshev, “Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect,” Physical Review Research, vol. 6, no.
1. American Physical Society, 2024.'
ista: 'Lorenc D, Alpichshev Z. 2024. Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect. Physical Review Research. 6(1), 013042.'
mla: 'Lorenc, Dusan, and Zhanybek Alpichshev. “Dispersive Effects in Ultrafast Nonlinear
Phenomena: The Case of Optical Kerr Effect.” Physical Review Research,
vol. 6, no. 1, 013042, American Physical Society, 2024, doi:10.1103/PhysRevResearch.6.013042.'
short: D. Lorenc, Z. Alpichshev, Physical Review Research 6 (2024).
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-11T00:00:00Z
date_updated: 2024-01-31T12:01:16Z
day: '11'
ddc:
- '530'
department:
- _id: ZhAl
doi: 10.1103/PhysRevResearch.6.013042
file:
- access_level: open_access
checksum: 42d58f93ae74e7f2c4de058ef75ff8b2
content_type: application/pdf
creator: dernst
date_created: 2024-01-31T11:59:30Z
date_updated: 2024-01-31T11:59:30Z
file_id: '14918'
file_name: 2024_PhysicalReviewResearch_Lorenc.pdf
file_size: 2863627
relation: main_file
success: 1
file_date_updated: 2024-01-31T11:59:30Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review Research
publication_identifier:
eissn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Dispersive effects in ultrafast nonlinear phenomena: The case of optical Kerr
effect'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2024'
...
---
_id: '14342'
abstract:
- lang: eng
text: We propose a simple method to measure nonlinear Kerr refractive index in mid-infrared
frequency range that avoids using sophisticated infrared detectors. Our approach
is based on using a near-infrared probe beam which interacts with a mid-IR beam
via wavelength-non-degenerate cross-phase modulation (XPM). By carefully measuring
XPM-induced spectral modifications in the probe beam and comparing the experimental
data with simulation results, we extract the value for the non-degenerate Kerr
index. Finally, in order to obtain the value of degenerate mid-IR Kerr index,
we use the well-established two-band formalism of Sheik-Bahae et al., which is
shown to become particularly simple in the limit of low frequencies. The proposed
technique is complementary to the conventional techniques, such as z-scan, and
has the advantage of not requiring any mid-infrared detectors.
acknowledgement: The work was supported by IST Austria. The authors would like to
gratefully acknowledge the help and assistance of Professor John M. Dudley.
article_number: '091104'
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: Lorenc D, Alpichshev Z. Mid-infrared Kerr index evaluation via cross-phase
modulation with a near-infrared probe beam. Applied Physics Letters. 2023;123(9).
doi:10.1063/5.0161713
apa: Lorenc, D., & Alpichshev, Z. (2023). Mid-infrared Kerr index evaluation
via cross-phase modulation with a near-infrared probe beam. Applied Physics
Letters. AIP Publishing. https://doi.org/10.1063/5.0161713
chicago: Lorenc, Dusan, and Zhanybek Alpichshev. “Mid-Infrared Kerr Index Evaluation
via Cross-Phase Modulation with a near-Infrared Probe Beam.” Applied Physics
Letters. AIP Publishing, 2023. https://doi.org/10.1063/5.0161713.
ieee: D. Lorenc and Z. Alpichshev, “Mid-infrared Kerr index evaluation via cross-phase
modulation with a near-infrared probe beam,” Applied Physics Letters, vol.
123, no. 9. AIP Publishing, 2023.
ista: Lorenc D, Alpichshev Z. 2023. Mid-infrared Kerr index evaluation via cross-phase
modulation with a near-infrared probe beam. Applied Physics Letters. 123(9), 091104.
mla: Lorenc, Dusan, and Zhanybek Alpichshev. “Mid-Infrared Kerr Index Evaluation
via Cross-Phase Modulation with a near-Infrared Probe Beam.” Applied Physics
Letters, vol. 123, no. 9, 091104, AIP Publishing, 2023, doi:10.1063/5.0161713.
short: D. Lorenc, Z. Alpichshev, Applied Physics Letters 123 (2023).
date_created: 2023-09-17T22:01:09Z
date_published: 2023-08-28T00:00:00Z
date_updated: 2023-09-20T11:50:06Z
day: '28'
ddc:
- '530'
department:
- _id: ZhAl
doi: 10.1063/5.0161713
external_id:
arxiv:
- '2306.09043'
file:
- access_level: open_access
checksum: 89a1b604d58b209fec66c6b6f919ac98
content_type: application/pdf
creator: dernst
date_created: 2023-09-20T11:36:16Z
date_updated: 2023-09-20T11:36:16Z
file_id: '14353'
file_name: 2023_ApplPhysLetter_Lorenc.pdf
file_size: 1486715
relation: main_file
success: 1
file_date_updated: 2023-09-20T11:36:16Z
has_accepted_license: '1'
intvolume: ' 123'
issue: '9'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Mid-infrared Kerr index evaluation via cross-phase modulation with a near-infrared
probe beam
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 123
year: '2023'
...
---
_id: '13251'
abstract:
- lang: eng
text: A rotating organic cation and a dynamically disordered soft inorganic cage
are the hallmark features of organic-inorganic lead-halide perovskites. Understanding
the interplay between these two subsystems is a challenging problem, but it is
this coupling that is widely conjectured to be responsible for the unique behavior
of photocarriers in these materials. In this work, we use the fact that the polarizability
of the organic cation strongly depends on the ambient electrostatic environment
to put the molecule forward as a sensitive probe of the local crystal fields inside
the lattice cell. We measure the average polarizability of the C/N–H bond stretching
mode by means of infrared spectroscopy, which allows us to deduce the character
of the motion of the cation molecule, find the magnitude of the local crystal
field, and place an estimate on the strength of the hydrogen bond between the
hydrogen and halide atoms. Our results pave the way for understanding electric
fields in lead-halide perovskites using infrared bond spectroscopy.
acknowledgement: "We thank Bingqing Cheng and Hong-Zhou Ye for valuable discussions;
Y.W.’s work at IST Austria was supported through ISTernship summer internship program
funded by OeADGmbH; D.L. and Z.A. acknowledge support by IST Austria (ISTA); M.L.
acknowledges support by the European Research Council (ERC) Starting Grant No. 801770
(ANGULON).\r\nA.A.Z. and O.M.B. acknowledge support by KAUST."
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Yujing
full_name: Wei, Yujing
id: 0c5ff007-2600-11ee-b896-98bd8d663294
last_name: Wei
orcid: 0000-0001-8913-9719
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Ayan A.
full_name: Zhumekenov, Ayan A.
last_name: Zhumekenov
- first_name: Osman M.
full_name: Bakr, Osman M.
last_name: Bakr
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: Wei Y, Volosniev A, Lorenc D, et al. Bond polarizability as a probe of local
crystal fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry
Letters. 2023;14(27):6309-6314. doi:10.1021/acs.jpclett.3c01158
apa: Wei, Y., Volosniev, A., Lorenc, D., Zhumekenov, A. A., Bakr, O. M., Lemeshko,
M., & Alpichshev, Z. (2023). Bond polarizability as a probe of local crystal
fields in hybrid lead-halide perovskites. The Journal of Physical Chemistry
Letters. American Chemical Society. https://doi.org/10.1021/acs.jpclett.3c01158
chicago: Wei, Yujing, Artem Volosniev, Dusan Lorenc, Ayan A. Zhumekenov, Osman M.
Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Bond Polarizability as a Probe
of Local Crystal Fields in Hybrid Lead-Halide Perovskites.” The Journal of
Physical Chemistry Letters. American Chemical Society, 2023. https://doi.org/10.1021/acs.jpclett.3c01158.
ieee: Y. Wei et al., “Bond polarizability as a probe of local crystal fields
in hybrid lead-halide perovskites,” The Journal of Physical Chemistry Letters,
vol. 14, no. 27. American Chemical Society, pp. 6309–6314, 2023.
ista: Wei Y, Volosniev A, Lorenc D, Zhumekenov AA, Bakr OM, Lemeshko M, Alpichshev
Z. 2023. Bond polarizability as a probe of local crystal fields in hybrid lead-halide
perovskites. The Journal of Physical Chemistry Letters. 14(27), 6309–6314.
mla: Wei, Yujing, et al. “Bond Polarizability as a Probe of Local Crystal Fields
in Hybrid Lead-Halide Perovskites.” The Journal of Physical Chemistry Letters,
vol. 14, no. 27, American Chemical Society, 2023, pp. 6309–14, doi:10.1021/acs.jpclett.3c01158.
short: Y. Wei, A. Volosniev, D. Lorenc, A.A. Zhumekenov, O.M. Bakr, M. Lemeshko,
Z. Alpichshev, The Journal of Physical Chemistry Letters 14 (2023) 6309–6314.
date_created: 2023-07-18T11:13:17Z
date_published: 2023-07-05T00:00:00Z
date_updated: 2023-07-19T06:59:19Z
day: '05'
ddc:
- '530'
department:
- _id: MiLe
- _id: ZhAl
doi: 10.1021/acs.jpclett.3c01158
ec_funded: 1
external_id:
arxiv:
- '2304.14198'
isi:
- '001022811500001'
file:
- access_level: open_access
checksum: c0c040063f06a51b9c463adc504f1a23
content_type: application/pdf
creator: dernst
date_created: 2023-07-19T06:55:39Z
date_updated: 2023-07-19T06:55:39Z
file_id: '13253'
file_name: 2023_JourPhysChemistry_Wei.pdf
file_size: 2121252
relation: main_file
success: 1
file_date_updated: 2023-07-19T06:55:39Z
has_accepted_license: '1'
intvolume: ' 14'
isi: 1
issue: '27'
keyword:
- General Materials Science
- Physical and Theoretical Chemistry
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 6309-6314
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: The Journal of Physical Chemistry Letters
publication_identifier:
eissn:
- 1948-7185
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
status: public
title: Bond polarizability as a probe of local crystal fields in hybrid lead-halide
perovskites
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2023'
...
---
_id: '12723'
abstract:
- lang: eng
text: 'Lead halide perovskites enjoy a number of remarkable optoelectronic properties.
To explain their origin, it is necessary to study how electromagnetic fields interact
with these systems. We address this problem here by studying two classical quantities:
Faraday rotation and the complex refractive index in a paradigmatic perovskite
CH3NH3PbBr3 in a broad wavelength range. We find that the minimal coupling of
electromagnetic fields to the k⋅p Hamiltonian is insufficient to describe the
observed data even on the qualitative level. To amend this, we demonstrate that
there exists a relevant atomic-level coupling between electromagnetic fields and
the spin degree of freedom. This spin-electric coupling allows for quantitative
description of a number of previous as well as present experimental data. In particular,
we use it here to show that the Faraday effect in lead halide perovskites is dominated
by the Zeeman splitting of the energy levels and has a substantial beyond-Becquerel
contribution. Finally, we present general symmetry-based phenomenological arguments
that in the low-energy limit our effective model includes all basis coupling terms
to the electromagnetic field in the linear order.'
article_number: '106901'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Abhishek
full_name: Shiva Kumar, Abhishek
id: 5e9a6931-eb97-11eb-a6c2-e96f7058d77a
last_name: Shiva Kumar
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Younes
full_name: Ashourishokri, Younes
id: e32c111f-f6e0-11ea-865d-eb955baea334
last_name: Ashourishokri
- first_name: Ayan A.
full_name: Zhumekenov, Ayan A.
last_name: Zhumekenov
- first_name: Osman M.
full_name: Bakr, Osman M.
last_name: Bakr
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: Volosniev A, Shiva Kumar A, Lorenc D, et al. Spin-electric coupling in lead
halide perovskites. Physical Review Letters. 2023;130(10). doi:10.1103/physrevlett.130.106901
apa: Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov,
A. A., Bakr, O. M., … Alpichshev, Z. (2023). Spin-electric coupling in lead halide
perovskites. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.130.106901
chicago: Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri,
Ayan A. Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev.
“Spin-Electric Coupling in Lead Halide Perovskites.” Physical Review Letters.
American Physical Society, 2023. https://doi.org/10.1103/physrevlett.130.106901.
ieee: A. Volosniev et al., “Spin-electric coupling in lead halide perovskites,”
Physical Review Letters, vol. 130, no. 10. American Physical Society, 2023.
ista: Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov AA, Bakr
OM, Lemeshko M, Alpichshev Z. 2023. Spin-electric coupling in lead halide perovskites.
Physical Review Letters. 130(10), 106901.
mla: Volosniev, Artem, et al. “Spin-Electric Coupling in Lead Halide Perovskites.”
Physical Review Letters, vol. 130, no. 10, 106901, American Physical Society,
2023, doi:10.1103/physrevlett.130.106901.
short: A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A.A. Zhumekenov,
O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review Letters 130 (2023).
date_created: 2023-03-14T13:11:59Z
date_published: 2023-03-10T00:00:00Z
date_updated: 2023-08-01T13:39:04Z
day: '10'
department:
- _id: GradSch
- _id: ZhAl
- _id: MiLe
doi: 10.1103/physrevlett.130.106901
external_id:
arxiv:
- '2203.09443'
isi:
- '000982435900002'
intvolume: ' 130'
isi: 1
issue: '10'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2203.09443
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spin-electric coupling in lead halide perovskites
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 130
year: '2023'
...
---
_id: '12724'
abstract:
- lang: eng
text: 'We use general symmetry-based arguments to construct an effective model suitable
for studying optical properties of lead halide perovskites. To build the model,
we identify an atomic-level interaction between electromagnetic fields and the
spin degree of freedom that should be added to a minimally coupled k⋅p Hamiltonian.
As a first application, we study two basic optical characteristics of the material:
the Verdet constant and the refractive index. Beyond these linear characteristics
of the material, the model is suitable for calculating nonlinear effects such
as the third-order optical susceptibility. Analysis of this quantity shows that
the geometrical properties of the spin-electric term imply isotropic optical response
of the system, and that optical anisotropy of lead halide perovskites is a manifestation
of hopping of charge carriers. To illustrate this, we discuss third-harmonic generation.'
article_number: '125201'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Abhishek
full_name: Shiva Kumar, Abhishek
id: 5e9a6931-eb97-11eb-a6c2-e96f7058d77a
last_name: Shiva Kumar
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Younes
full_name: Ashourishokri, Younes
id: e32c111f-f6e0-11ea-865d-eb955baea334
last_name: Ashourishokri
- first_name: Ayan
full_name: Zhumekenov, Ayan
last_name: Zhumekenov
- first_name: Osman M.
full_name: Bakr, Osman M.
last_name: Bakr
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: Volosniev A, Shiva Kumar A, Lorenc D, et al. Effective model for studying optical
properties of lead halide perovskites. Physical Review B. 2023;107(12).
doi:10.1103/physrevb.107.125201
apa: Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov,
A., Bakr, O. M., … Alpichshev, Z. (2023). Effective model for studying optical
properties of lead halide perovskites. Physical Review B. American Physical
Society. https://doi.org/10.1103/physrevb.107.125201
chicago: Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri,
Ayan Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Effective
Model for Studying Optical Properties of Lead Halide Perovskites.” Physical
Review B. American Physical Society, 2023. https://doi.org/10.1103/physrevb.107.125201.
ieee: A. Volosniev et al., “Effective model for studying optical properties
of lead halide perovskites,” Physical Review B, vol. 107, no. 12. American
Physical Society, 2023.
ista: Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov A, Bakr
OM, Lemeshko M, Alpichshev Z. 2023. Effective model for studying optical properties
of lead halide perovskites. Physical Review B. 107(12), 125201.
mla: Volosniev, Artem, et al. “Effective Model for Studying Optical Properties of
Lead Halide Perovskites.” Physical Review B, vol. 107, no. 12, 125201,
American Physical Society, 2023, doi:10.1103/physrevb.107.125201.
short: A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A. Zhumekenov,
O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review B 107 (2023).
date_created: 2023-03-14T13:13:05Z
date_published: 2023-03-15T00:00:00Z
date_updated: 2023-08-01T13:39:47Z
day: '15'
department:
- _id: GradSch
- _id: ZhAl
- _id: MiLe
doi: 10.1103/physrevb.107.125201
external_id:
arxiv:
- '2204.04022'
isi:
- '000972602200006'
intvolume: ' 107'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2204.04022
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Effective model for studying optical properties of lead halide perovskites
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2023'
...
---
_id: '11737'
abstract:
- lang: eng
text: Spin-orbit coupling in thin HgTe quantum wells results in a relativistic-like
electron band structure, making it a versatile solid state platform to observe
and control nontrivial electrodynamic phenomena. Here we report an observation
of universal terahertz (THz) transparency determined by fine-structure constant
α≈1/137 in 6.5-nm-thick HgTe layer, close to the critical thickness separating
phases with topologically different electronic band structure. Using THz spectroscopy
in a magnetic field we obtain direct evidence of asymmetric spin splitting of
the Dirac cone. This particle-hole asymmetry facilitates optical control of edge
spin currents in the quantum wells.
acknowledgement: This work was supported by the Austrian Science Funds (W 1243, I
3456-N27, I 5539-N).
article_number: '045302'
article_processing_charge: No
article_type: original
author:
- first_name: Uladzislau
full_name: Dziom, Uladzislau
id: 6A9A37C2-8C5C-11E9-AE53-F2FDE5697425
last_name: Dziom
orcid: 0000-0002-1648-0999
- first_name: A.
full_name: Shuvaev, A.
last_name: Shuvaev
- first_name: J.
full_name: Gospodarič, J.
last_name: Gospodarič
- first_name: E. G.
full_name: Novik, E. G.
last_name: Novik
- first_name: A. A.
full_name: Dobretsova, A. A.
last_name: Dobretsova
- first_name: N. N.
full_name: Mikhailov, N. N.
last_name: Mikhailov
- first_name: Z. D.
full_name: Kvon, Z. D.
last_name: Kvon
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: A.
full_name: Pimenov, A.
last_name: Pimenov
citation:
ama: Dziom U, Shuvaev A, Gospodarič J, et al. Universal transparency and asymmetric
spin splitting near the Dirac point in HgTe quantum wells. Physical Review
B. 2022;106(4). doi:10.1103/PhysRevB.106.045302
apa: Dziom, U., Shuvaev, A., Gospodarič, J., Novik, E. G., Dobretsova, A. A., Mikhailov,
N. N., … Pimenov, A. (2022). Universal transparency and asymmetric spin splitting
near the Dirac point in HgTe quantum wells. Physical Review B. American
Physical Society. https://doi.org/10.1103/PhysRevB.106.045302
chicago: Dziom, Uladzislau, A. Shuvaev, J. Gospodarič, E. G. Novik, A. A. Dobretsova,
N. N. Mikhailov, Z. D. Kvon, Zhanybek Alpichshev, and A. Pimenov. “Universal Transparency
and Asymmetric Spin Splitting near the Dirac Point in HgTe Quantum Wells.” Physical
Review B. American Physical Society, 2022. https://doi.org/10.1103/PhysRevB.106.045302.
ieee: U. Dziom et al., “Universal transparency and asymmetric spin splitting
near the Dirac point in HgTe quantum wells,” Physical Review B, vol. 106,
no. 4. American Physical Society, 2022.
ista: Dziom U, Shuvaev A, Gospodarič J, Novik EG, Dobretsova AA, Mikhailov NN, Kvon
ZD, Alpichshev Z, Pimenov A. 2022. Universal transparency and asymmetric spin
splitting near the Dirac point in HgTe quantum wells. Physical Review B. 106(4),
045302.
mla: Dziom, Uladzislau, et al. “Universal Transparency and Asymmetric Spin Splitting
near the Dirac Point in HgTe Quantum Wells.” Physical Review B, vol. 106,
no. 4, 045302, American Physical Society, 2022, doi:10.1103/PhysRevB.106.045302.
short: U. Dziom, A. Shuvaev, J. Gospodarič, E.G. Novik, A.A. Dobretsova, N.N. Mikhailov,
Z.D. Kvon, Z. Alpichshev, A. Pimenov, Physical Review B 106 (2022).
date_created: 2022-08-07T22:01:58Z
date_published: 2022-07-15T00:00:00Z
date_updated: 2023-08-03T12:38:57Z
day: '15'
ddc:
- '530'
department:
- _id: ZhAl
doi: 10.1103/PhysRevB.106.045302
external_id:
isi:
- '000834349200010'
file:
- access_level: open_access
checksum: 115aff9e0cde2f806cb26953d7262791
content_type: application/pdf
creator: dernst
date_created: 2022-08-08T06:58:22Z
date_updated: 2022-08-08T06:58:22Z
file_id: '11743'
file_name: 2022_PhysRevB_Dziom.pdf
file_size: 774455
relation: main_file
success: 1
file_date_updated: 2022-08-08T06:58:22Z
has_accepted_license: '1'
intvolume: ' 106'
isi: 1
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Universal transparency and asymmetric spin splitting near the Dirac point in
HgTe quantum wells
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 106
year: '2022'
...
---
_id: '394'
abstract:
- lang: eng
text: 'The valley pseudospin in monolayer transition metal dichalcogenides (TMDs)
has been proposed as a new way to manipulate information in various optoelectronic
devices. This relies on a large valley polarization that remains stable over long
time scales (hundreds of nanoseconds). However, time-resolved measurements report
valley lifetimes of only a few picoseconds. This has been attributed to mechanisms
such as phonon-mediated intervalley scattering and a precession of the valley
pseudospin through electron-hole exchange. Here we use transient spin grating
to directly measure the valley depolarization lifetime in monolayer MoSe2. We
find a fast valley decay rate that scales linearly with the excitation density
at different temperatures. This establishes the presence of strong exciton-exciton
Coulomb exchange interactions enhancing the valley depolarization. Our work highlights
the microscopic processes inhibiting the efficient use of the exciton valley pseudospin
in monolayer TMDs. '
arxiv: 1
author:
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Yi
full_name: Lee, Yi
last_name: Lee
- first_name: Jing
full_name: Kong, Jing
last_name: Kong
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
citation:
ama: Mahmood F, Alpichshev Z, Lee Y, Kong J, Gedik N. Observation of exciton-exciton
interaction mediated valley Depolarization in Monolayer MoSe2. Nano Letters.
2018;18(1):223-228. doi:10.1021/acs.nanolett.7b03953
apa: Mahmood, F., Alpichshev, Z., Lee, Y., Kong, J., & Gedik, N. (2018). Observation
of exciton-exciton interaction mediated valley Depolarization in Monolayer MoSe2.
Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.7b03953
chicago: Mahmood, Fahad, Zhanybek Alpichshev, Yi Lee, Jing Kong, and Nuh Gedik.
“Observation of Exciton-Exciton Interaction Mediated Valley Depolarization in
Monolayer MoSe2.” Nano Letters. American Chemical Society, 2018. https://doi.org/10.1021/acs.nanolett.7b03953.
ieee: F. Mahmood, Z. Alpichshev, Y. Lee, J. Kong, and N. Gedik, “Observation of
exciton-exciton interaction mediated valley Depolarization in Monolayer MoSe2,”
Nano Letters, vol. 18, no. 1. American Chemical Society, pp. 223–228, 2018.
ista: Mahmood F, Alpichshev Z, Lee Y, Kong J, Gedik N. 2018. Observation of exciton-exciton
interaction mediated valley Depolarization in Monolayer MoSe2. Nano Letters. 18(1),
223–228.
mla: Mahmood, Fahad, et al. “Observation of Exciton-Exciton Interaction Mediated
Valley Depolarization in Monolayer MoSe2.” Nano Letters, vol. 18, no. 1,
American Chemical Society, 2018, pp. 223–28, doi:10.1021/acs.nanolett.7b03953.
short: F. Mahmood, Z. Alpichshev, Y. Lee, J. Kong, N. Gedik, Nano Letters 18 (2018)
223–228.
date_created: 2018-12-11T11:46:13Z
date_published: 2018-01-10T00:00:00Z
date_updated: 2021-01-12T07:53:20Z
day: '10'
doi: 10.1021/acs.nanolett.7b03953
extern: '1'
external_id:
arxiv:
- '1712.07925'
intvolume: ' 18'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1712.07925
month: '01'
oa: 1
oa_version: Submitted Version
page: 223 - 228
publication: Nano Letters
publication_status: published
publisher: American Chemical Society
publist_id: '7435'
quality_controlled: '1'
status: public
title: Observation of exciton-exciton interaction mediated valley Depolarization in
Monolayer MoSe2
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2018'
...
---
_id: '391'
abstract:
- lang: eng
text: 'Three-dimensional topological insulators are bulk insulators with Z 2 topological
electronic order that gives rise to conducting light-like surface states. These
surface electrons are exceptionally resistant to localization by non-magnetic
disorder, and have been adopted as the basis for a wide range of proposals to
achieve new quasiparticle species and device functionality. Recent studies have
yielded a surprise by showing that in spite of resisting localization, topological
insulator surface electrons can be reshaped by defects into distinctive resonance
states. Here we use numerical simulations and scanning tunnelling microscopy data
to show that these resonance states have significance well beyond the localized
regime usually associated with impurity bands. At native densities in the model
Bi2X3 (X=Bi, Te) compounds, defect resonance states are predicted to generate
a new quantum basis for an emergent electron gas that supports diffusive electrical
transport. '
author:
- first_name: Yishuai
full_name: Xu, Yishuai
last_name: Xu
- first_name: Janet
full_name: Chiu, Janet
last_name: Chiu
- first_name: Lin
full_name: Miao, Lin
last_name: Miao
- first_name: Haowei
full_name: He, Haowei
last_name: He
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Aharon
full_name: Kapitulnik, Aharon
last_name: Kapitulnik
- first_name: Rudro
full_name: Biswas, Rudro
last_name: Biswas
- first_name: Lewis
full_name: Wray, Lewis
last_name: Wray
citation:
ama: Xu Y, Chiu J, Miao L, et al. Disorder enabled band structure engineering of
a topological insulator surface. Nature Communications. 2017;8. doi:10.1038/ncomms14081
apa: Xu, Y., Chiu, J., Miao, L., He, H., Alpichshev, Z., Kapitulnik, A., … Wray,
L. (2017). Disorder enabled band structure engineering of a topological insulator
surface. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms14081
chicago: Xu, Yishuai, Janet Chiu, Lin Miao, Haowei He, Zhanybek Alpichshev, Aharon
Kapitulnik, Rudro Biswas, and Lewis Wray. “Disorder Enabled Band Structure Engineering
of a Topological Insulator Surface.” Nature Communications. Nature Publishing
Group, 2017. https://doi.org/10.1038/ncomms14081.
ieee: Y. Xu et al., “Disorder enabled band structure engineering of a topological
insulator surface,” Nature Communications, vol. 8. Nature Publishing Group,
2017.
ista: Xu Y, Chiu J, Miao L, He H, Alpichshev Z, Kapitulnik A, Biswas R, Wray L.
2017. Disorder enabled band structure engineering of a topological insulator surface.
Nature Communications. 8.
mla: Xu, Yishuai, et al. “Disorder Enabled Band Structure Engineering of a Topological
Insulator Surface.” Nature Communications, vol. 8, Nature Publishing Group,
2017, doi:10.1038/ncomms14081.
short: Y. Xu, J. Chiu, L. Miao, H. He, Z. Alpichshev, A. Kapitulnik, R. Biswas,
L. Wray, Nature Communications 8 (2017).
date_created: 2018-12-11T11:46:12Z
date_published: 2017-02-03T00:00:00Z
date_updated: 2021-01-12T07:53:08Z
day: '03'
doi: 10.1038/ncomms14081
extern: '1'
intvolume: ' 8'
language:
- iso: eng
month: '02'
oa_version: None
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
publist_id: '7438'
status: public
title: Disorder enabled band structure engineering of a topological insulator surface
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2017'
...
---
_id: '392'
abstract:
- lang: eng
text: We used femtosecond optical pump-probe spectroscopy to study the photoinduced
change in reflectivity of thin films of the electron-doped cuprate La2-xCexCuO4
(LCCO) with dopings of x=0.08 (underdoped) and x=0.11 (optimally doped). Above
Tc, we observe fluence-dependent relaxation rates that begin at a temperature
similar to the one where transport measurements first show signatures of antiferromagnetic
correlations. Upon suppressing superconductivity with a magnetic field, it is
found that the fluence and temperature dependence of relaxation rates are consistent
with bimolecular recombination of electrons and holes across a gap (2ΔAF) originating
from antiferromagnetic correlations which comprise the pseudogap in electron-doped
cuprates. This can be used to learn about coupling between electrons and high-energy
(ω>2ΔAF) excitations in these compounds and set limits on the time scales on
which antiferromagnetic correlations are static.
acknowledgement: Optical pump-probe work was supported by the Gordon and Betty Moore
Foundation's EPiQS initiative through Grant No. GBMF4540. Materials growth and characterization
was supported by AFOSR FA95501410332 and NSF DMR1410665.
author:
- first_name: Inna
full_name: Vishik, Inna
last_name: Vishik
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
- first_name: Joshu
full_name: Higgins, Joshu
last_name: Higgins
- first_name: Richard
full_name: Greene, Richard
last_name: Greene
citation:
ama: Vishik I, Mahmood F, Alpichshev Z, Gedik N, Higgins J, Greene R. Ultrafast
dynamics in the presence of antiferromagnetic correlations in electron doped cuprate
La2 xCexCuO4±δ. Physical Review B. 2017;95(11). doi:10.1103/PhysRevB.95.115125
apa: Vishik, I., Mahmood, F., Alpichshev, Z., Gedik, N., Higgins, J., & Greene,
R. (2017). Ultrafast dynamics in the presence of antiferromagnetic correlations
in electron doped cuprate La2 xCexCuO4±δ. Physical Review B. American Physical
Society. https://doi.org/10.1103/PhysRevB.95.115125
chicago: Vishik, Inna, Fahad Mahmood, Zhanybek Alpichshev, Nuh Gedik, Joshu Higgins,
and Richard Greene. “Ultrafast Dynamics in the Presence of Antiferromagnetic Correlations
in Electron Doped Cuprate La2 XCexCuO4±δ.” Physical Review B. American
Physical Society, 2017. https://doi.org/10.1103/PhysRevB.95.115125.
ieee: I. Vishik, F. Mahmood, Z. Alpichshev, N. Gedik, J. Higgins, and R. Greene,
“Ultrafast dynamics in the presence of antiferromagnetic correlations in electron
doped cuprate La2 xCexCuO4±δ,” Physical Review B, vol. 95, no. 11. American
Physical Society, 2017.
ista: Vishik I, Mahmood F, Alpichshev Z, Gedik N, Higgins J, Greene R. 2017. Ultrafast
dynamics in the presence of antiferromagnetic correlations in electron doped cuprate
La2 xCexCuO4±δ. Physical Review B. 95(11).
mla: Vishik, Inna, et al. “Ultrafast Dynamics in the Presence of Antiferromagnetic
Correlations in Electron Doped Cuprate La2 XCexCuO4±δ.” Physical Review B,
vol. 95, no. 11, American Physical Society, 2017, doi:10.1103/PhysRevB.95.115125.
short: I. Vishik, F. Mahmood, Z. Alpichshev, N. Gedik, J. Higgins, R. Greene, Physical
Review B 95 (2017).
date_created: 2018-12-11T11:46:13Z
date_published: 2017-03-13T00:00:00Z
date_updated: 2021-01-12T07:53:12Z
day: '13'
doi: 10.1103/PhysRevB.95.115125
extern: '1'
intvolume: ' 95'
issue: '11'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://dspace.mit.edu/handle/1721.1/109835
month: '03'
oa: 1
oa_version: None
publication: Physical Review B
publication_status: published
publisher: American Physical Society
publist_id: '7437'
status: public
title: Ultrafast dynamics in the presence of antiferromagnetic correlations in electron
doped cuprate La2 xCexCuO4±δ
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 95
year: '2017'
...
---
_id: '393'
abstract:
- lang: eng
text: 'We use a three-pulse ultrafast optical spectroscopy to study the relaxation
processes in a frustrated Mott insulator Na2IrO3. By being able to independently
produce the out-of-equilibrium bound states (excitons) of doublons and holons
with the first pulse and suppress the underlying antiferromagnetic order with
the second one, we were able to elucidate the relaxation mechanism of quasiparticles
in this system. By observing the difference in the exciton dynamics in the magnetically
ordered and disordered phases we found that the mass of this quasiparticle is
mostly determined by its interaction with the surrounding spins. '
acknowledgement: "Z.A. gratefully acknowledges discussions with P. A. Lee and A. Kemper.
A conversation with J. Zaanen was instrumental in clarifying the physical picture
described in this paper. We would also like to thank A. Kogar for thoroughly reading
the manuscript and making valuable comments. This work was supported by Army Research
Office Grant No. W911NF-15-1-0128 and Gordon and Betty Moore Foundation EPiQS Initiative
through Grant No. GBMF4540 (time resolved optical spectroscopy), Skoltech, as part
of the Skoltech NGP program (theory) and National Science Foundation Grant No. DMR-1265162
(material growth).\r\n\r\n"
author:
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Edbert
full_name: Sie, Edbert
last_name: Sie
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Gang
full_name: Cao, Gang
last_name: Cao
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
citation:
ama: Alpichshev Z, Sie E, Mahmood F, Cao G, Gedik N. Origin of the exciton mass
in the frustrated Mott insulator Na2IrO3. Physical Review B. 2017;96(23).
doi:10.1103/PhysRevB.96.235141
apa: Alpichshev, Z., Sie, E., Mahmood, F., Cao, G., & Gedik, N. (2017). Origin
of the exciton mass in the frustrated Mott insulator Na2IrO3. Physical Review
B. American Physical Society. https://doi.org/10.1103/PhysRevB.96.235141
chicago: Alpichshev, Zhanybek, Edbert Sie, Fahad Mahmood, Gang Cao, and Nuh Gedik.
“Origin of the Exciton Mass in the Frustrated Mott Insulator Na2IrO3.” Physical
Review B. American Physical Society, 2017. https://doi.org/10.1103/PhysRevB.96.235141.
ieee: Z. Alpichshev, E. Sie, F. Mahmood, G. Cao, and N. Gedik, “Origin of the exciton
mass in the frustrated Mott insulator Na2IrO3,” Physical Review B, vol.
96, no. 23. American Physical Society, 2017.
ista: Alpichshev Z, Sie E, Mahmood F, Cao G, Gedik N. 2017. Origin of the exciton
mass in the frustrated Mott insulator Na2IrO3. Physical Review B. 96(23).
mla: Alpichshev, Zhanybek, et al. “Origin of the Exciton Mass in the Frustrated
Mott Insulator Na2IrO3.” Physical Review B, vol. 96, no. 23, American Physical
Society, 2017, doi:10.1103/PhysRevB.96.235141.
short: Z. Alpichshev, E. Sie, F. Mahmood, G. Cao, N. Gedik, Physical Review B 96
(2017).
date_created: 2018-12-11T11:46:13Z
date_published: 2017-12-26T00:00:00Z
date_updated: 2021-01-12T07:53:16Z
day: '26'
doi: 10.1103/PhysRevB.96.235141
extern: '1'
intvolume: ' 96'
issue: '23'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://dspace.mit.edu/handle/1721.1/114259
month: '12'
oa: 1
oa_version: None
publication: Physical Review B
publication_status: published
publisher: American Physical Society
publist_id: '7436'
status: public
title: Origin of the exciton mass in the frustrated Mott insulator Na2IrO3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 96
year: '2017'
...
---
_id: '389'
abstract:
- lang: eng
text: The coherent optical manipulation of solids is emerging as a promising way
to engineer novel quantum states of matter. The strong time-periodic potential
of intense laser light can be used to generate hybrid photon-electron states.
Interaction of light with Bloch states leads to Floquet-Bloch states, which are
essential in realizing new photo-induced quantum phases. Similarly, dressing of
free-electron states near the surface of a solid generates Volkov states, which
are used to study nonlinear optics in atoms and semiconductors. The interaction
of these two dynamic states with each other remains an open experimental problem.
Here we use time- and angle-resolved photoemission spectroscopy (Tr-ARPES) to
selectively study the transition between these two states on the surface of the
topological insulator Bi2Se3. We find that the coupling between the two strongly
depends on the electron momentum, providing a route to enhance or inhibit it.
Moreover, by controlling the light polarization we can negate Volkov states to
generate pure Floquet-Bloch states. This work establishes a systematic path for
the coherent manipulation of solids via light-matter interaction.
acknowledgement: The authors would like to thank C. Lee for useful discussions. This
work is supported by US Department of Energy (DOE), Basic Energy Sciences, Division
of Materials Sciences and Engineering (experimental set-up, data acquisition and
theory), Army Research Office (electron spectrometer) and by the Gordon and Betty
Moore Foundation’s EPiQS Initiative through Grant GBMF4540 (data analysis).
author:
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Ching
full_name: Chan, Ching
last_name: Chan
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Dillon
full_name: Gardner, Dillon
last_name: Gardner
- first_name: Young
full_name: Lee, Young
last_name: Lee
- first_name: Patrick
full_name: Lee, Patrick
last_name: Lee
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
citation:
ama: Mahmood F, Chan C, Alpichshev Z, et al. Selective scattering between Floquet
Bloch and Volkov states in a topological insulator. Nature Physics. 2016;12(4):306-310.
doi:10.1038/nphys3609
apa: Mahmood, F., Chan, C., Alpichshev, Z., Gardner, D., Lee, Y., Lee, P., &
Gedik, N. (2016). Selective scattering between Floquet Bloch and Volkov states
in a topological insulator. Nature Physics. Nature Publishing Group. https://doi.org/10.1038/nphys3609
chicago: Mahmood, Fahad, Ching Chan, Zhanybek Alpichshev, Dillon Gardner, Young
Lee, Patrick Lee, and Nuh Gedik. “Selective Scattering between Floquet Bloch and
Volkov States in a Topological Insulator.” Nature Physics. Nature Publishing
Group, 2016. https://doi.org/10.1038/nphys3609.
ieee: F. Mahmood et al., “Selective scattering between Floquet Bloch and
Volkov states in a topological insulator,” Nature Physics, vol. 12, no.
4. Nature Publishing Group, pp. 306–310, 2016.
ista: Mahmood F, Chan C, Alpichshev Z, Gardner D, Lee Y, Lee P, Gedik N. 2016. Selective
scattering between Floquet Bloch and Volkov states in a topological insulator.
Nature Physics. 12(4), 306–310.
mla: Mahmood, Fahad, et al. “Selective Scattering between Floquet Bloch and Volkov
States in a Topological Insulator.” Nature Physics, vol. 12, no. 4, Nature
Publishing Group, 2016, pp. 306–10, doi:10.1038/nphys3609.
short: F. Mahmood, C. Chan, Z. Alpichshev, D. Gardner, Y. Lee, P. Lee, N. Gedik,
Nature Physics 12 (2016) 306–310.
date_created: 2018-12-11T11:46:11Z
date_published: 2016-04-01T00:00:00Z
date_updated: 2021-01-12T07:52:59Z
day: '01'
doi: 10.1038/nphys3609
extern: '1'
intvolume: ' 12'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1512.05714
month: '04'
oa: 1
oa_version: None
page: 306 - 310
publication: Nature Physics
publication_status: published
publisher: Nature Publishing Group
publist_id: '7440'
status: public
title: Selective scattering between Floquet Bloch and Volkov states in a topological
insulator
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2016'
...
---
_id: '390'
abstract:
- lang: eng
text: In the underdoped copper-oxides, high-temperature superconductivity condenses
from a nonconventional metallic "pseudogap" phase that exhibits a variety
of non-Fermi liquid properties. Recently, it has become clear that a charge density
wave (CDW) phase exists within the pseudogap regime. This CDW coexists and competes
with superconductivity (SC) below the transition temperature Tc, suggesting that
these two orders are intimately related. Here we show that the condensation of
the superfluid from this unconventional precursor is reflected in deviations from
the predictions of BSC theory regarding the recombination rate of quasiparticles.
We report a detailed investigation of the quasiparticle (QP) recombination lifetime,
τqp, as a function of temperature and magnetic field in underdoped HgBa2CuO4+δ
(Hg-1201) and YBa2Cu3O6+x (YBCO) single crystals by ultrafast time-resolved reflectivity.
We find that τqp (T) exhibits a local maximum in a small temperature window near
Tc that is prominent in underdoped samples with coexisting charge order and vanishes
with application of a small magnetic field. We explain this unusual, non-BCS behavior
by positing that Tc marks a transition from phase-fluctuating SC/CDW composite
order above to a SC/CDW condensate below. Our results suggest that the superfluid
in underdoped cuprates is a condensate of coherently-mixed particle-particle and
particle-hole pairs.
author:
- first_name: James
full_name: Hinton, James
last_name: Hinton
- first_name: E
full_name: Thewalt, E
last_name: Thewalt
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Jake
full_name: Koralek, Jake
last_name: Koralek
- first_name: Mun
full_name: Chan, Mun
last_name: Chan
- first_name: Michael
full_name: Veit, Michael
last_name: Veit
- first_name: Chelsey
full_name: Dorow, Chelsey
last_name: Dorow
- first_name: Neven
full_name: Barišić, Neven
last_name: Barišić
- first_name: Alexander
full_name: Kemper, Alexander
last_name: Kemper
- first_name: Doug
full_name: Bonn, Doug
last_name: Bonn
- first_name: Walter
full_name: Hardy, Walter
last_name: Hardy
- first_name: Ruixing
full_name: Liang, Ruixing
last_name: Liang
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
- first_name: Martin
full_name: Greven, Martin
last_name: Greven
- first_name: Alessandra
full_name: Lanzara, Alessandra
last_name: Lanzara
- first_name: Joseph
full_name: Orenstein, Joseph
last_name: Orenstein
citation:
ama: Hinton J, Thewalt E, Alpichshev Z, et al. The rate of quasiparticle recombination
probes the onset of coherence in cuprate superconductors. Scientific Reports.
2016;6. doi:10.1038/srep23610
apa: Hinton, J., Thewalt, E., Alpichshev, Z., Mahmood, F., Koralek, J., Chan, M.,
… Orenstein, J. (2016). The rate of quasiparticle recombination probes the onset
of coherence in cuprate superconductors. Scientific Reports. Nature Publishing
Group. https://doi.org/10.1038/srep23610
chicago: Hinton, James, E Thewalt, Zhanybek Alpichshev, Fahad Mahmood, Jake Koralek,
Mun Chan, Michael Veit, et al. “The Rate of Quasiparticle Recombination Probes
the Onset of Coherence in Cuprate Superconductors.” Scientific Reports.
Nature Publishing Group, 2016. https://doi.org/10.1038/srep23610.
ieee: J. Hinton et al., “The rate of quasiparticle recombination probes the
onset of coherence in cuprate superconductors,” Scientific Reports, vol.
6. Nature Publishing Group, 2016.
ista: Hinton J, Thewalt E, Alpichshev Z, Mahmood F, Koralek J, Chan M, Veit M, Dorow
C, Barišić N, Kemper A, Bonn D, Hardy W, Liang R, Gedik N, Greven M, Lanzara A,
Orenstein J. 2016. The rate of quasiparticle recombination probes the onset of
coherence in cuprate superconductors. Scientific Reports. 6.
mla: Hinton, James, et al. “The Rate of Quasiparticle Recombination Probes the Onset
of Coherence in Cuprate Superconductors.” Scientific Reports, vol. 6, Nature
Publishing Group, 2016, doi:10.1038/srep23610.
short: J. Hinton, E. Thewalt, Z. Alpichshev, F. Mahmood, J. Koralek, M. Chan, M.
Veit, C. Dorow, N. Barišić, A. Kemper, D. Bonn, W. Hardy, R. Liang, N. Gedik,
M. Greven, A. Lanzara, J. Orenstein, Scientific Reports 6 (2016).
date_created: 2018-12-11T11:46:12Z
date_published: 2016-04-13T00:00:00Z
date_updated: 2021-01-12T07:53:03Z
day: '13'
doi: 10.1038/srep23610
extern: '1'
intvolume: ' 6'
language:
- iso: eng
month: '04'
oa_version: None
publication: Scientific Reports
publication_status: published
publisher: Nature Publishing Group
publist_id: '7439'
status: public
title: The rate of quasiparticle recombination probes the onset of coherence in cuprate
superconductors
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2016'
...
---
_id: '388'
abstract:
- lang: eng
text: We use ultrafast optical spectroscopy to observe binding of charged single-particle
excitations (SE) in the magnetically frustrated Mott insulator Na2IrO3. Above
the antiferromagnetic ordering temperature (TN) the system response is due to
both Hubbard excitons (HE) and their constituent unpaired SE. The SE response
becomes strongly suppressed immediately below TN. We argue that this increase
in binding energy is due to a unique interplay between the frustrated Kitaev and
the weak Heisenberg-type ordering term in the Hamiltonian, mediating an effective
interaction between the spin-singlet SE. This interaction grows with distance
causing the SE to become trapped in the HE, similar to quark confinement inside
hadrons. This binding of charged particles, induced by magnetic ordering, is a
result of a confinement-deconfinement transition of spin excitations. This observation
provides evidence for spin liquid type behavior which is expected in Na2IrO3.
article_processing_charge: No
article_type: original
author:
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Gang
full_name: Cao, Gang
last_name: Cao
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
citation:
ama: Alpichshev Z, Mahmood F, Cao G, Gedik N. Confinement deconfinement transition
as an indication of spin liquid type behavior in Na2IrO3. Physical Review Letters.
2015;114(1). doi:10.1103/PhysRevLett.114.017203
apa: Alpichshev, Z., Mahmood, F., Cao, G., & Gedik, N. (2015). Confinement deconfinement
transition as an indication of spin liquid type behavior in Na2IrO3. Physical
Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.114.017203
chicago: Alpichshev, Zhanybek, Fahad Mahmood, Gang Cao, and Nuh Gedik. “Confinement
Deconfinement Transition as an Indication of Spin Liquid Type Behavior in Na2IrO3.”
Physical Review Letters. American Physical Society, 2015. https://doi.org/10.1103/PhysRevLett.114.017203.
ieee: Z. Alpichshev, F. Mahmood, G. Cao, and N. Gedik, “Confinement deconfinement
transition as an indication of spin liquid type behavior in Na2IrO3,” Physical
Review Letters, vol. 114, no. 1. American Physical Society, 2015.
ista: Alpichshev Z, Mahmood F, Cao G, Gedik N. 2015. Confinement deconfinement transition
as an indication of spin liquid type behavior in Na2IrO3. Physical Review Letters.
114(1).
mla: Alpichshev, Zhanybek, et al. “Confinement Deconfinement Transition as an Indication
of Spin Liquid Type Behavior in Na2IrO3.” Physical Review Letters, vol.
114, no. 1, American Physical Society, 2015, doi:10.1103/PhysRevLett.114.017203.
short: Z. Alpichshev, F. Mahmood, G. Cao, N. Gedik, Physical Review Letters 114
(2015).
date_created: 2018-12-11T11:46:11Z
date_published: 2015-07-07T00:00:00Z
date_updated: 2021-01-12T07:52:54Z
day: '07'
doi: 10.1103/PhysRevLett.114.017203
extern: '1'
intvolume: ' 114'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://dspace.mit.edu/handle/1721.1/92979
month: '07'
oa: 1
oa_version: Published Version
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '7441'
quality_controlled: '1'
status: public
title: Confinement deconfinement transition as an indication of spin liquid type behavior
in Na2IrO3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 114
year: '2015'
...
---
_id: '387'
abstract:
- lang: eng
text: In this Letter we present detailed study of the density of states near defects
in Bi 2Se 3. In particular, we present data on the commonly found triangular defects
in this system. While we do not find any measurable quasiparticle scattering interference
effects, we do find localized resonances, which can be well fitted by theory once
the potential is taken to be extended to properly account for the observed defects.
The data together with the fits confirm that while the local density of states
around the Dirac point of the electronic spectrum at the surface is significantly
disrupted near the impurity by the creation of low-energy resonance state, the
Dirac point is not locally destroyed. We discuss our results in terms of the expected
protected surface state of topological insulators. © 2012 American Physical Society.
author:
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Rudro
full_name: Biswas, Rudro
last_name: Biswas
- first_name: Alexander
full_name: Balatsky, Alexander
last_name: Balatsky
- first_name: James
full_name: Analytis, James
last_name: Analytis
- first_name: Jiunhaw
full_name: Chu, Jiunhaw
last_name: Chu
- first_name: Ian
full_name: Fisher, Ian
last_name: Fisher
- first_name: Aharon
full_name: Kapitulnik, Aharon
last_name: Kapitulnik
citation:
ama: Alpichshev Z, Biswas R, Balatsky A, et al. STM imaging of impurity resonances
on Bi 2Se 3. Physical Review Letters. 2012;108(20). doi:10.1103/PhysRevLett.108.206402
apa: Alpichshev, Z., Biswas, R., Balatsky, A., Analytis, J., Chu, J., Fisher, I.,
& Kapitulnik, A. (2012). STM imaging of impurity resonances on Bi 2Se 3. Physical
Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.108.206402
chicago: Alpichshev, Zhanybek, Rudro Biswas, Alexander Balatsky, James Analytis,
Jiunhaw Chu, Ian Fisher, and Aharon Kapitulnik. “STM Imaging of Impurity Resonances
on Bi 2Se 3.” Physical Review Letters. American Physical Society, 2012.
https://doi.org/10.1103/PhysRevLett.108.206402.
ieee: Z. Alpichshev et al., “STM imaging of impurity resonances on Bi 2Se
3,” Physical Review Letters, vol. 108, no. 20. American Physical Society,
2012.
ista: Alpichshev Z, Biswas R, Balatsky A, Analytis J, Chu J, Fisher I, Kapitulnik
A. 2012. STM imaging of impurity resonances on Bi 2Se 3. Physical Review Letters.
108(20).
mla: Alpichshev, Zhanybek, et al. “STM Imaging of Impurity Resonances on Bi 2Se
3.” Physical Review Letters, vol. 108, no. 20, American Physical Society,
2012, doi:10.1103/PhysRevLett.108.206402.
short: Z. Alpichshev, R. Biswas, A. Balatsky, J. Analytis, J. Chu, I. Fisher, A.
Kapitulnik, Physical Review Letters 108 (2012).
date_created: 2018-12-11T11:46:11Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2021-01-12T07:52:49Z
day: '01'
doi: 10.1103/PhysRevLett.108.206402
extern: '1'
intvolume: ' 108'
issue: '20'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1108.0022
month: '01'
oa: 1
oa_version: None
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '7442'
status: public
title: STM imaging of impurity resonances on Bi 2Se 3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2012'
...
---
_id: '386'
abstract:
- lang: eng
text: 'We present a detailed study of the local density of states (LDOS) associated
with the surface-state band near a step edge of the strong topological insulator
Bi2Te3 and reveal a one-dimensional bound state that runs parallel to the step
edge and is bound to it at some characteristic distance. This bound state is clearly
observed in the bulk gap region, while it becomes entangled with the oscillations
of the warped surface band at high energy, and with the valence-band states near
the Dirac point. We obtain excellent fits to theoretical predictions [Alpichshev,
2011] that properly incorporate the three-dimensional nature of the problem to
the surface state. Fitting the data at different energies, we can recalculate
the LDOS originating from the Dirac band without the contribution of the bulk
bands or incoherent tunneling effects. '
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: J G
full_name: Analytis, J G
last_name: Analytis
- first_name: J H
full_name: Chu, J H
last_name: Chu
- first_name: I R
full_name: Fisher, I R
last_name: Fisher
- first_name: A
full_name: Kapitulnik, A
last_name: Kapitulnik
citation:
ama: Alpichshev Z, Analytis JG, Chu JH, Fisher IR, Kapitulnik A. STM imaging of
a bound state along a step on the surface of the topological insulator Bi2Te3.
Physical Review B - Condensed Matter and Materials Physics. 2011;84(4).
doi:10.1103/PhysRevB.84.041104
apa: Alpichshev, Z., Analytis, J. G., Chu, J. H., Fisher, I. R., & Kapitulnik,
A. (2011). STM imaging of a bound state along a step on the surface of the topological
insulator Bi2Te3. Physical Review B - Condensed Matter and Materials Physics.
American Physical Society. https://doi.org/10.1103/PhysRevB.84.041104
chicago: Alpichshev, Zhanybek, J G Analytis, J H Chu, I R Fisher, and A Kapitulnik.
“STM Imaging of a Bound State along a Step on the Surface of the Topological Insulator
Bi2Te3.” Physical Review B - Condensed Matter and Materials Physics. American
Physical Society, 2011. https://doi.org/10.1103/PhysRevB.84.041104.
ieee: Z. Alpichshev, J. G. Analytis, J. H. Chu, I. R. Fisher, and A. Kapitulnik,
“STM imaging of a bound state along a step on the surface of the topological insulator
Bi2Te3,” Physical Review B - Condensed Matter and Materials Physics, vol.
84, no. 4. American Physical Society, 2011.
ista: Alpichshev Z, Analytis JG, Chu JH, Fisher IR, Kapitulnik A. 2011. STM imaging
of a bound state along a step on the surface of the topological insulator Bi2Te3.
Physical Review B - Condensed Matter and Materials Physics. 84(4).
mla: Alpichshev, Zhanybek, et al. “STM Imaging of a Bound State along a Step on
the Surface of the Topological Insulator Bi2Te3.” Physical Review B - Condensed
Matter and Materials Physics, vol. 84, no. 4, American Physical Society, 2011,
doi:10.1103/PhysRevB.84.041104.
short: Z. Alpichshev, J.G. Analytis, J.H. Chu, I.R. Fisher, A. Kapitulnik, Physical
Review B - Condensed Matter and Materials Physics 84 (2011).
date_created: 2018-12-11T11:46:10Z
date_published: 2011-07-21T00:00:00Z
date_updated: 2021-01-12T07:52:44Z
day: '21'
doi: 10.1103/PhysRevB.84.041104
extern: '1'
external_id:
arxiv:
- '1003.2233'
intvolume: ' 84'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1003.2233
month: '07'
oa: 1
oa_version: Preprint
publication: Physical Review B - Condensed Matter and Materials Physics
publication_status: published
publisher: American Physical Society
publist_id: '7443'
quality_controlled: '1'
status: public
title: STM imaging of a bound state along a step on the surface of the topological
insulator Bi2Te3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 84
year: '2011'
...
---
_id: '385'
abstract:
- lang: eng
text: 'Scanning tunneling spectroscopy studies on high-quality Bi2Te3 crystals exhibit
perfect correspondence to angle-resolved photoemission spectroscopy data, hence
enabling identification of different regimes measured in the local density of
states (LDOS). Oscillations of LDOS near a step are analyzed. Within the main
part of the surface band oscillations are strongly damped, supporting the hypothesis
of topological protection. At higher energies, as the surface band becomes concave,
oscillations appear, dispersing with a wave vector that may result from a hexagonal
warping term. '
author:
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: James
full_name: Analytis, James
last_name: Analytis
- first_name: Jiunhaw
full_name: Chu, Jiunhaw
last_name: Chu
- first_name: Ian
full_name: Fisher, Ian
last_name: Fisher
- first_name: Yulin
full_name: Chen, Yulin
last_name: Chen
- first_name: Zhixun
full_name: Shen, Zhixun
last_name: Shen
- first_name: Aiping
full_name: Fang, Aiping
last_name: Fang
- first_name: Aharon
full_name: Kapitulnik, Aharon
last_name: Kapitulnik
citation:
ama: Alpichshev Z, Analytis J, Chu J, et al. STM imaging of electronic waves on
the surface of Bi2Te3 Topologically protected surface states and hexagonal warping
effects. Physical Review Letters. 2010;104(1). doi:10.1103/PhysRevLett.104.016401
apa: Alpichshev, Z., Analytis, J., Chu, J., Fisher, I., Chen, Y., Shen, Z., … Kapitulnik,
A. (2010). STM imaging of electronic waves on the surface of Bi2Te3 Topologically
protected surface states and hexagonal warping effects. Physical Review Letters.
American Physical Society. https://doi.org/10.1103/PhysRevLett.104.016401
chicago: Alpichshev, Zhanybek, James Analytis, Jiunhaw Chu, Ian Fisher, Yulin Chen,
Zhixun Shen, Aiping Fang, and Aharon Kapitulnik. “STM Imaging of Electronic Waves
on the Surface of Bi2Te3 Topologically Protected Surface States and Hexagonal
Warping Effects.” Physical Review Letters. American Physical Society, 2010.
https://doi.org/10.1103/PhysRevLett.104.016401.
ieee: Z. Alpichshev et al., “STM imaging of electronic waves on the surface
of Bi2Te3 Topologically protected surface states and hexagonal warping effects,”
Physical Review Letters, vol. 104, no. 1. American Physical Society, 2010.
ista: Alpichshev Z, Analytis J, Chu J, Fisher I, Chen Y, Shen Z, Fang A, Kapitulnik
A. 2010. STM imaging of electronic waves on the surface of Bi2Te3 Topologically
protected surface states and hexagonal warping effects. Physical Review Letters.
104(1).
mla: Alpichshev, Zhanybek, et al. “STM Imaging of Electronic Waves on the Surface
of Bi2Te3 Topologically Protected Surface States and Hexagonal Warping Effects.”
Physical Review Letters, vol. 104, no. 1, American Physical Society, 2010,
doi:10.1103/PhysRevLett.104.016401.
short: Z. Alpichshev, J. Analytis, J. Chu, I. Fisher, Y. Chen, Z. Shen, A. Fang,
A. Kapitulnik, Physical Review Letters 104 (2010).
date_created: 2018-12-11T11:46:10Z
date_published: 2010-01-04T00:00:00Z
date_updated: 2021-01-12T07:52:39Z
day: '04'
doi: 10.1103/PhysRevLett.104.016401
extern: '1'
intvolume: ' 104'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/pdf/0908.0371.pdf
month: '01'
oa: 1
oa_version: None
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '7444'
status: public
title: STM imaging of electronic waves on the surface of Bi2Te3 Topologically protected
surface states and hexagonal warping effects
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 104
year: '2010'
...