---
_id: '10401'
abstract:
- lang: eng
  text: Theoretical and experimental studies of the interaction between spins and
    temperature are vital for the development of spin caloritronics, as they dictate
    the design of future devices. In this work, we propose a two-terminal cold-atom
    simulator to study that interaction. The proposed quantum simulator consists of
    strongly interacting atoms that occupy two temperature reservoirs connected by
    a one-dimensional link. First, we argue that the dynamics in the link can be described
    using an inhomogeneous Heisenberg spin chain whose couplings are defined by the
    local temperature. Second, we show the existence of a spin current in a system
    with a temperature difference by studying the dynamics that follows the spin-flip
    of an atom in the link. A temperature gradient accelerates the impurity in one
    direction more than in the other, leading to an overall spin current similar to
    the spin Seebeck effect.
acknowledgement: The authors acknowledge support from the European QuantERA ERA-NET
  Cofund in Quantum Technologies (Project QTFLAG Grant Agreement No. 731473) (R.E.B),
  CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico) Brazil (A.F.),
  the European Union’s Horizon 2020 research and innovation programme under the Marie
  Skłodowska-Curie Grant Agreement No. 754411 (A.G.V.), the Independent Research Fund
  Denmark, the Carlsberg Foundation, and Aarhus University Research Foundation under
  the Jens Christian Skou fellowship program (N.T.Z).
article_number: '252'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Rafael E.
  full_name: Barfknecht, Rafael E.
  last_name: Barfknecht
- first_name: Angela
  full_name: Foerster, Angela
  last_name: Foerster
- first_name: Nikolaj T.
  full_name: Zinner, Nikolaj T.
  last_name: Zinner
- first_name: Artem
  full_name: Volosniev, Artem
  id: 37D278BC-F248-11E8-B48F-1D18A9856A87
  last_name: Volosniev
  orcid: 0000-0003-0393-5525
citation:
  ama: Barfknecht RE, Foerster A, Zinner NT, Volosniev A. Generation of spin currents
    by a temperature gradient in a two-terminal device. <i>Communications Physics</i>.
    2021;4(1). doi:<a href="https://doi.org/10.1038/s42005-021-00753-7">10.1038/s42005-021-00753-7</a>
  apa: Barfknecht, R. E., Foerster, A., Zinner, N. T., &#38; Volosniev, A. (2021).
    Generation of spin currents by a temperature gradient in a two-terminal device.
    <i>Communications Physics</i>. Springer Nature. <a href="https://doi.org/10.1038/s42005-021-00753-7">https://doi.org/10.1038/s42005-021-00753-7</a>
  chicago: Barfknecht, Rafael E., Angela Foerster, Nikolaj T. Zinner, and Artem Volosniev.
    “Generation of Spin Currents by a Temperature Gradient in a Two-Terminal Device.”
    <i>Communications Physics</i>. Springer Nature, 2021. <a href="https://doi.org/10.1038/s42005-021-00753-7">https://doi.org/10.1038/s42005-021-00753-7</a>.
  ieee: R. E. Barfknecht, A. Foerster, N. T. Zinner, and A. Volosniev, “Generation
    of spin currents by a temperature gradient in a two-terminal device,” <i>Communications
    Physics</i>, vol. 4, no. 1. Springer Nature, 2021.
  ista: Barfknecht RE, Foerster A, Zinner NT, Volosniev A. 2021. Generation of spin
    currents by a temperature gradient in a two-terminal device. Communications Physics.
    4(1), 252.
  mla: Barfknecht, Rafael E., et al. “Generation of Spin Currents by a Temperature
    Gradient in a Two-Terminal Device.” <i>Communications Physics</i>, vol. 4, no.
    1, 252, Springer Nature, 2021, doi:<a href="https://doi.org/10.1038/s42005-021-00753-7">10.1038/s42005-021-00753-7</a>.
  short: R.E. Barfknecht, A. Foerster, N.T. Zinner, A. Volosniev, Communications Physics
    4 (2021).
date_created: 2021-12-05T23:01:39Z
date_published: 2021-11-26T00:00:00Z
date_updated: 2023-08-14T13:04:34Z
day: '26'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1038/s42005-021-00753-7
ec_funded: 1
external_id:
  arxiv:
  - '2101.02020'
  isi:
  - 10.1038/s42005-021-00753-7
file:
- access_level: open_access
  checksum: 9097319952cb9a3d96e7fd3aa9813a03
  content_type: application/pdf
  creator: alisjak
  date_created: 2021-12-06T14:53:41Z
  date_updated: 2021-12-06T14:53:41Z
  file_id: '10420'
  file_name: 2021_NatComm_Barfknecht.pdf
  file_size: 1068984
  relation: main_file
  success: 1
file_date_updated: 2021-12-06T14:53:41Z
has_accepted_license: '1'
intvolume: '         4'
issue: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Communications Physics
publication_identifier:
  eissn:
  - '23993650'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Generation of spin currents by a temperature gradient in a two-terminal device
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: 4
year: '2021'
...
---
_id: '8036'
abstract:
- lang: eng
  text: When tiny soft ferromagnetic particles are placed along a liquid interface
    and exposed to a vertical magnetic field, the balance between capillary attraction
    and magnetic repulsion leads to self-organization into well-defined patterns.
    Here, we demonstrate experimentally that precessing magnetic fields induce metachronal
    waves on the periphery of these assemblies, similar to the ones observed in ciliates
    and some arthropods. The outermost layer of particles behaves like an array of
    cilia or legs whose sequential movement causes a net and controllable locomotion.
    This bioinspired many-particle swimming strategy is effective even at low Reynolds
    number, using only spatially uniform fields to generate the waves.
article_number: '112'
article_processing_charge: No
article_type: original
author:
- first_name: Ylona
  full_name: Collard, Ylona
  last_name: Collard
- first_name: Galien M
  full_name: Grosjean, Galien M
  id: 0C5FDA4A-9CF6-11E9-8939-FF05E6697425
  last_name: Grosjean
  orcid: 0000-0001-5154-417X
- first_name: Nicolas
  full_name: Vandewalle, Nicolas
  last_name: Vandewalle
citation:
  ama: Collard Y, Grosjean GM, Vandewalle N. Magnetically powered metachronal waves
    induce locomotion in self-assemblies. <i>Communications Physics</i>. 2020;3. doi:<a
    href="https://doi.org/10.1038/s42005-020-0380-9">10.1038/s42005-020-0380-9</a>
  apa: Collard, Y., Grosjean, G. M., &#38; Vandewalle, N. (2020). Magnetically powered
    metachronal waves induce locomotion in self-assemblies. <i>Communications Physics</i>.
    Springer Nature. <a href="https://doi.org/10.1038/s42005-020-0380-9">https://doi.org/10.1038/s42005-020-0380-9</a>
  chicago: Collard, Ylona, Galien M Grosjean, and Nicolas Vandewalle. “Magnetically
    Powered Metachronal Waves Induce Locomotion in Self-Assemblies.” <i>Communications
    Physics</i>. Springer Nature, 2020. <a href="https://doi.org/10.1038/s42005-020-0380-9">https://doi.org/10.1038/s42005-020-0380-9</a>.
  ieee: Y. Collard, G. M. Grosjean, and N. Vandewalle, “Magnetically powered metachronal
    waves induce locomotion in self-assemblies,” <i>Communications Physics</i>, vol.
    3. Springer Nature, 2020.
  ista: Collard Y, Grosjean GM, Vandewalle N. 2020. Magnetically powered metachronal
    waves induce locomotion in self-assemblies. Communications Physics. 3, 112.
  mla: Collard, Ylona, et al. “Magnetically Powered Metachronal Waves Induce Locomotion
    in Self-Assemblies.” <i>Communications Physics</i>, vol. 3, 112, Springer Nature,
    2020, doi:<a href="https://doi.org/10.1038/s42005-020-0380-9">10.1038/s42005-020-0380-9</a>.
  short: Y. Collard, G.M. Grosjean, N. Vandewalle, Communications Physics 3 (2020).
date_created: 2020-06-29T07:59:35Z
date_published: 2020-06-19T00:00:00Z
date_updated: 2023-08-22T07:47:30Z
day: '19'
ddc:
- '530'
department:
- _id: ScWa
doi: 10.1038/s42005-020-0380-9
ec_funded: 1
external_id:
  isi:
  - '000543328000002'
file:
- access_level: open_access
  checksum: ed984f7a393f19140b5279a54a3336ad
  content_type: application/pdf
  creator: cziletti
  date_created: 2020-06-29T13:21:24Z
  date_updated: 2020-07-14T12:48:08Z
  file_id: '8045'
  file_name: 2020_CommunicationsPhysics_Collard.pdf
  file_size: 1907821
  relation: main_file
file_date_updated: 2020-07-14T12:48:08Z
has_accepted_license: '1'
intvolume: '         3'
isi: 1
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Communications Physics
publication_identifier:
  eissn:
  - '23993650'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Magnetically powered metachronal waves induce locomotion in self-assemblies
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: 3
year: '2020'
...