---
_id: '14032'
abstract:
- lang: eng
text: Arrays of Josephson junctions are governed by a competition between superconductivity
and repulsive Coulomb interactions, and are expected to exhibit diverging low-temperature
resistance when interactions exceed a critical level. Here we report a study of
the transport and microwave response of Josephson arrays with interactions exceeding
this level. Contrary to expectations, we observe that the array resistance drops
dramatically as the temperature is decreased—reminiscent of superconducting behaviour—and
then saturates at low temperature. Applying a magnetic field, we eventually observe
a transition to a highly resistive regime. These observations can be understood
within a theoretical picture that accounts for the effect of thermal fluctuations
on the insulating phase. On the basis of the agreement between experiment and
theory, we suggest that apparent superconductivity in our Josephson arrays arises
from melting the zero-temperature insulator.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: We thank D. Haviland, J. Pekola, C. Ciuti, A. Bubis and A. Shnirman
for helpful feedback on the paper. This research was supported by the Scientific
Service Units of IST Austria through resources provided by the MIBA Machine Shop
and the Nanofabrication Facility. Work supported by the Austrian FWF grant P33692-N
(S.M., J.S. and A.P.H.), the European Union’s Horizon 2020 Research and Innovation
programme under the Marie Skłodowska-Curie Grant Agreement No. 754411 (J.S.) and
a NOMIS foundation research grant (J.M.F. and A.P.H.).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Soham
full_name: Mukhopadhyay, Soham
id: FDE60288-A89D-11E9-947F-1AF6E5697425
last_name: Mukhopadhyay
- first_name: Jorden L
full_name: Senior, Jorden L
id: 5479D234-2D30-11EA-89CC-40953DDC885E
last_name: Senior
orcid: 0000-0002-0672-9295
- first_name: Jaime
full_name: Saez Mollejo, Jaime
id: e0390f72-f6e0-11ea-865d-862393336714
last_name: Saez Mollejo
- first_name: Denise
full_name: Puglia, Denise
id: 4D495994-AE37-11E9-AC72-31CAE5697425
last_name: Puglia
orcid: 0000-0003-1144-2763
- first_name: Martin
full_name: Zemlicka, Martin
id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
last_name: Zemlicka
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
citation:
ama: Mukhopadhyay S, Senior JL, Saez Mollejo J, et al. Superconductivity from a
melted insulator in Josephson junction arrays. Nature Physics. 2023;19:1630-1635.
doi:10.1038/s41567-023-02161-w
apa: Mukhopadhyay, S., Senior, J. L., Saez Mollejo, J., Puglia, D., Zemlicka, M.,
Fink, J. M., & Higginbotham, A. P. (2023). Superconductivity from a melted
insulator in Josephson junction arrays. Nature Physics. Springer Nature.
https://doi.org/10.1038/s41567-023-02161-w
chicago: Mukhopadhyay, Soham, Jorden L Senior, Jaime Saez Mollejo, Denise Puglia,
Martin Zemlicka, Johannes M Fink, and Andrew P Higginbotham. “Superconductivity
from a Melted Insulator in Josephson Junction Arrays.” Nature Physics.
Springer Nature, 2023. https://doi.org/10.1038/s41567-023-02161-w.
ieee: S. Mukhopadhyay et al., “Superconductivity from a melted insulator
in Josephson junction arrays,” Nature Physics, vol. 19. Springer Nature,
pp. 1630–1635, 2023.
ista: Mukhopadhyay S, Senior JL, Saez Mollejo J, Puglia D, Zemlicka M, Fink JM,
Higginbotham AP. 2023. Superconductivity from a melted insulator in Josephson
junction arrays. Nature Physics. 19, 1630–1635.
mla: Mukhopadhyay, Soham, et al. “Superconductivity from a Melted Insulator in Josephson
Junction Arrays.” Nature Physics, vol. 19, Springer Nature, 2023, pp. 1630–35,
doi:10.1038/s41567-023-02161-w.
short: S. Mukhopadhyay, J.L. Senior, J. Saez Mollejo, D. Puglia, M. Zemlicka, J.M.
Fink, A.P. Higginbotham, Nature Physics 19 (2023) 1630–1635.
date_created: 2023-08-11T07:41:17Z
date_published: 2023-11-01T00:00:00Z
date_updated: 2024-01-29T11:27:49Z
day: '01'
ddc:
- '530'
department:
- _id: GradSch
- _id: AnHi
- _id: JoFi
doi: 10.1038/s41567-023-02161-w
ec_funded: 1
external_id:
isi:
- '001054563800006'
file:
- access_level: open_access
checksum: 1fc86d71bfbf836e221c1e925343adc5
content_type: application/pdf
creator: dernst
date_created: 2024-01-29T11:25:38Z
date_updated: 2024-01-29T11:25:38Z
file_id: '14899'
file_name: 2023_NaturePhysics_Mukhopadhyay.pdf
file_size: 1977706
relation: main_file
success: 1
file_date_updated: 2024-01-29T11:25:38Z
has_accepted_license: '1'
intvolume: ' 19'
isi: 1
keyword:
- General Physics and Astronomy
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 1630-1635
project:
- _id: 0aa3608a-070f-11eb-9043-e9cd8a2bd931
grant_number: P33692
name: Cavity electromechanics across a quantum phase transition
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: eb9b30ac-77a9-11ec-83b8-871f581d53d2
name: Protected states of quantum matter
- _id: bd5b4ec5-d553-11ed-ba76-a6eedb083344
name: Protected states of quantum matter
publication: Nature Physics
publication_identifier:
eissn:
- 1745-2481
issn:
- 1745-2473
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Superconductivity from a melted insulator in Josephson junction arrays
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: 19
year: '2023'
...
---
_id: '13080'
abstract:
- lang: eng
text: "Data for the manuscript 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire' ([2006.01275] Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire (arxiv.org))\r\n\r\nWe upload a pdf with extended data sets, and the
raw data for these extended datasets as well."
article_processing_charge: No
author:
- first_name: Denise
full_name: Puglia, Denise
id: 4D495994-AE37-11E9-AC72-31CAE5697425
last_name: Puglia
- first_name: Esteban
full_name: Martinez, Esteban
last_name: Martinez
- first_name: Gerbold
full_name: Menard, Gerbold
last_name: Menard
- first_name: Andreas
full_name: Pöschl, Andreas
last_name: Pöschl
- first_name: Sergei
full_name: Gronin, Sergei
last_name: Gronin
- first_name: Geoffrey
full_name: Gardner, Geoffrey
last_name: Gardner
- first_name: Ray
full_name: Kallaher, Ray
last_name: Kallaher
- first_name: Michael
full_name: Manfra, Michael
last_name: Manfra
- first_name: Charles
full_name: Marcus, Charles
last_name: Marcus
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
- first_name: Lucas
full_name: Casparis, Lucas
last_name: Casparis
citation:
ama: Puglia D, Martinez E, Menard G, et al. Data for ’Closing of the Induced Gap
in a Hybrid Superconductor-Semiconductor Nanowire. 2021. doi:10.5281/ZENODO.4592435
apa: Puglia, D., Martinez, E., Menard, G., Pöschl, A., Gronin, S., Gardner, G.,
… Casparis, L. (2021). Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire. Zenodo. https://doi.org/10.5281/ZENODO.4592435
chicago: Puglia, Denise, Esteban Martinez, Gerbold Menard, Andreas Pöschl, Sergei
Gronin, Geoffrey Gardner, Ray Kallaher, et al. “Data for ’Closing of the Induced
Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.4592435.
ieee: D. Puglia et al., “Data for ’Closing of the Induced Gap in a Hybrid
Superconductor-Semiconductor Nanowire.” Zenodo, 2021.
ista: Puglia D, Martinez E, Menard G, Pöschl A, Gronin S, Gardner G, Kallaher R,
Manfra M, Marcus C, Higginbotham AP, Casparis L. 2021. Data for ’Closing of the
Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire, Zenodo, 10.5281/ZENODO.4592435.
mla: Puglia, Denise, et al. Data for ’Closing of the Induced Gap in a Hybrid
Superconductor-Semiconductor Nanowire. Zenodo, 2021, doi:10.5281/ZENODO.4592435.
short: D. Puglia, E. Martinez, G. Menard, A. Pöschl, S. Gronin, G. Gardner, R. Kallaher,
M. Manfra, C. Marcus, A.P. Higginbotham, L. Casparis, (2021).
date_created: 2023-05-23T17:11:28Z
date_published: 2021-03-09T00:00:00Z
date_updated: 2023-08-08T14:08:07Z
day: '09'
ddc:
- '530'
department:
- _id: AnHi
doi: 10.5281/ZENODO.4592435
main_file_link:
- open_access: '1'
url: https://doi.org/10.5281/zenodo.4592460
month: '03'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
link:
- relation: software
url: https://github.com/caslu85/Induced-Gap-Closing-Shared/tree/1.1.3
record:
- id: '9570'
relation: used_in_publication
status: public
status: public
title: Data for 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '9570'
abstract:
- lang: eng
text: We present conductance-matrix measurements in long, three-terminal hybrid
superconductor-semiconductor nanowires, and compare with theoretical predictions
of a magnetic-field-driven, topological quantum phase transition. By examining
the nonlocal conductance, we identify the closure of the excitation gap in the
bulk of the semiconductor before the emergence of zero-bias peaks, ruling out
spurious gap-closure signatures from localized states. We observe that after the
gap closes, nonlocal signals and zero-bias peaks fluctuate strongly at both ends,
inconsistent with a simple picture of clean topological superconductivity.
acknowledgement: We acknowledge insightful discussions with K. Flensberg, E. B. Hansen,
T. Karzig, R. Lutchyn, D. Pikulin, E. Prada, and R. Aguado. This work was supported
by Microsoft Project Q and the Danmarks Grundforskningsfond. C.M.M. acknowledges
support from the Villum Fonden. A.P.H. and L.C. contributed equally to this work.
article_number: '235201'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Denise
full_name: Puglia, Denise
id: 4D495994-AE37-11E9-AC72-31CAE5697425
last_name: Puglia
- first_name: E. A.
full_name: Martinez, E. A.
last_name: Martinez
- first_name: G. C.
full_name: Ménard, G. C.
last_name: Ménard
- first_name: A.
full_name: Pöschl, A.
last_name: Pöschl
- first_name: S.
full_name: Gronin, S.
last_name: Gronin
- first_name: G. C.
full_name: Gardner, G. C.
last_name: Gardner
- first_name: R.
full_name: Kallaher, R.
last_name: Kallaher
- first_name: M. J.
full_name: Manfra, M. J.
last_name: Manfra
- first_name: C. M.
full_name: Marcus, C. M.
last_name: Marcus
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
- first_name: L.
full_name: Casparis, L.
last_name: Casparis
citation:
ama: Puglia D, Martinez EA, Ménard GC, et al. Closing of the induced gap in a hybrid
superconductor-semiconductor nanowire. Physical Review B. 2021;103(23).
doi:10.1103/PhysRevB.103.235201
apa: Puglia, D., Martinez, E. A., Ménard, G. C., Pöschl, A., Gronin, S., Gardner,
G. C., … Casparis, L. (2021). Closing of the induced gap in a hybrid superconductor-semiconductor
nanowire. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.103.235201
chicago: Puglia, Denise, E. A. Martinez, G. C. Ménard, A. Pöschl, S. Gronin, G.
C. Gardner, R. Kallaher, et al. “Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire.” Physical Review B. American Physical Society, 2021. https://doi.org/10.1103/PhysRevB.103.235201.
ieee: D. Puglia et al., “Closing of the induced gap in a hybrid superconductor-semiconductor
nanowire,” Physical Review B, vol. 103, no. 23. American Physical Society,
2021.
ista: Puglia D, Martinez EA, Ménard GC, Pöschl A, Gronin S, Gardner GC, Kallaher
R, Manfra MJ, Marcus CM, Higginbotham AP, Casparis L. 2021. Closing of the induced
gap in a hybrid superconductor-semiconductor nanowire. Physical Review B. 103(23),
235201.
mla: Puglia, Denise, et al. “Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor
Nanowire.” Physical Review B, vol. 103, no. 23, 235201, American Physical
Society, 2021, doi:10.1103/PhysRevB.103.235201.
short: D. Puglia, E.A. Martinez, G.C. Ménard, A. Pöschl, S. Gronin, G.C. Gardner,
R. Kallaher, M.J. Manfra, C.M. Marcus, A.P. Higginbotham, L. Casparis, Physical
Review B 103 (2021).
date_created: 2021-06-20T22:01:33Z
date_published: 2021-06-15T00:00:00Z
date_updated: 2023-08-08T14:08:08Z
day: '15'
department:
- _id: AnHi
doi: 10.1103/PhysRevB.103.235201
external_id:
arxiv:
- '2006.01275'
isi:
- '000661512500002'
intvolume: ' 103'
isi: 1
issue: '23'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2006.01275
month: '06'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
eissn:
- '24699969'
issn:
- '24699950'
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
record:
- id: '13080'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Closing of the induced gap in a hybrid superconductor-semiconductor nanowire
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 103
year: '2021'
...