---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20324'
abstract:
- lang: eng
text: We report relaxation oscillations in a one-dimensional array of Josephson
junctions, wherein the array dynamically switches between low-current and high-current
states. The oscillations are current-voltage dual to those ordinarily observed
in single junctions. The current-voltage dual circuit quantitatively accounts
for temporal dynamics of the array, including the dependence on biasing conditions.
Injection locking of the oscillations results in well-developed current plateaux.
A thermal model explains the self-consistent reduction of the superconducting
gap due to overheating of the array in the high-current state. Our work suggests
that overheating determines the switching from the high-current state to the low-current
state.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: We gratefully acknowledge support from the Miba Machine Shop and
the Nanofabrictation Facility at IST Austria. This work was supported by the Austrian
FWF under Grant No. P33692-N (S.M., J.S., and A.P.H.), the European Union’s Horizon
2020 research and innovation program under Marie Skłodowska-Curie Grant Agreement
No. 754411 (J.S.), and a NOMIS Foundation research grant (A.P.H.).
article_number: '014035'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Soham
full_name: Mukhopadhyay, Soham
id: FDE60288-A89D-11E9-947F-1AF6E5697425
last_name: Mukhopadhyay
orcid: 0000-0001-5263-5559
- first_name: Diego A
full_name: Lancheros Naranjo, Diego A
id: 6c55e976-15b2-11ec-abd3-d790e8937fde
last_name: Lancheros Naranjo
- 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: 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, Lancheros Naranjo DA, Senior JL, Higginbotham AP. Dual relaxation
oscillations in a Josephson-junction array. Physical Review Applied. 2025;24.
doi:10.1103/qvls-7s3q
apa: Mukhopadhyay, S., Lancheros Naranjo, D. A., Senior, J. L., & Higginbotham,
A. P. (2025). Dual relaxation oscillations in a Josephson-junction array. Physical
Review Applied. American Physical Society. https://doi.org/10.1103/qvls-7s3q
chicago: Mukhopadhyay, Soham, Diego A Lancheros Naranjo, Jorden L Senior, and Andrew
P Higginbotham. “Dual Relaxation Oscillations in a Josephson-Junction Array.”
Physical Review Applied. American Physical Society, 2025. https://doi.org/10.1103/qvls-7s3q.
ieee: S. Mukhopadhyay, D. A. Lancheros Naranjo, J. L. Senior, and A. P. Higginbotham,
“Dual relaxation oscillations in a Josephson-junction array,” Physical Review
Applied, vol. 24. American Physical Society, 2025.
ista: Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. 2025. Dual
relaxation oscillations in a Josephson-junction array. Physical Review Applied.
24, 014035.
mla: Mukhopadhyay, Soham, et al. “Dual Relaxation Oscillations in a Josephson-Junction
Array.” Physical Review Applied, vol. 24, 014035, American Physical Society,
2025, doi:10.1103/qvls-7s3q.
short: S. Mukhopadhyay, D.A. Lancheros Naranjo, J.L. Senior, A.P. Higginbotham,
Physical Review Applied 24 (2025).
corr_author: '1'
date_created: 2025-09-10T05:41:30Z
date_published: 2025-07-17T00:00:00Z
date_updated: 2026-06-03T07:16:04Z
day: '17'
ddc:
- '530'
department:
- _id: GradSch
- _id: AnHi
doi: 10.1103/qvls-7s3q
ec_funded: 1
external_id:
arxiv:
- '2408.07829 '
isi:
- '001537333100001'
file:
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checksum: 6cc3c9beeb7c0a88ee0a072c9a32b78b
content_type: application/pdf
creator: dernst
date_created: 2025-09-10T07:29:06Z
date_updated: 2025-09-10T07:29:06Z
file_id: '20335'
file_name: 2025_PhysReviewAppl_Mukhopadhyay.pdf
file_size: 1370466
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success: 1
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intvolume: ' 24'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
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
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
record:
- id: '18057'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Dual relaxation oscillations in a Josephson-junction array
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: 24
year: '2025'
...
---
_id: '17235'
abstract:
- lang: eng
text: We demonstrate ion irradiation by argon or gallium as a wafer-scale post-processing
method to increase disorder in superconducting thin films. We study several widely
used superconductors, both single-elements and compounds. We show that ion irradiation
increases normal-state resistivity in all our films, which is expected to enable
tuning their superconducting properties, for example, toward a higher kinetic
inductance. We observe an increase in superconducting transition temperature for
Al and MoSi and a decrease for Nb, NbN, and TiN. In MoSi, ion irradiation also
improves the mixing of the two materials. We demonstrate the fabrication of an
amorphous and homogeneous film of MoSi with uniform thickness, which is promising,
for example, for superconducting nanowire single-photon detectors.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: We thank J. A. Sauls for useful discussions. For funding of our research
project, we acknowledge the European Union’s Horizon 2020 Research and Innovation
Program under Grant Agreement Nos. 862660/Quantum e-leaps, 899558/aCryComm, 766853/EFINED,
and ECSEL programme 101007322/MatQu. This project has also received funding from
Business Finland through Quantum Technologies Industrial (QuTI) Project No. 128291
and from Research Council of Finland through Grant Nos. 310909, 350220 and Finnish
Quantum Flagship project 359284. This work was performed as part of the Research
Council of Finland Centres of Excellence program (Project Nos. 336817, 336819, 352934,
and 352935). We also acknowledge funding from an internal strategic innovation project
of VTT related to the development of quantum computing technologies. This research
was supported by the Scientific Service Units of IST Austria through resources provided
by Electron Microscopy Facility. J. Senior acknowledges funding from the European
Union’s Horizon 2020 Research and Innovation Program under the Marie Skłodowska-Curie
Grant Agreement No. 754411. A. Ronzani acknowledges funding from Research Council
of Finland (Research Fellowship Project No. 356542).
article_number: '071101'
article_processing_charge: Yes
article_type: original
author:
- first_name: Katja
full_name: Kohopää, Katja
last_name: Kohopää
- first_name: Alberto
full_name: Ronzani, Alberto
last_name: Ronzani
- first_name: Robab Najafi
full_name: Jabdaraghi, Robab Najafi
last_name: Jabdaraghi
- first_name: Arijit
full_name: Bera, Arijit
last_name: Bera
- first_name: Mário
full_name: Ribeiro, Mário
last_name: Ribeiro
- first_name: Dibyendu
full_name: Hazra, Dibyendu
last_name: Hazra
- 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: Mika
full_name: Prunnila, Mika
last_name: Prunnila
- first_name: Joonas
full_name: Govenius, Joonas
last_name: Govenius
- first_name: Janne S.
full_name: Lehtinen, Janne S.
last_name: Lehtinen
- first_name: Antti
full_name: Kemppinen, Antti
last_name: Kemppinen
citation:
ama: Kohopää K, Ronzani A, Jabdaraghi RN, et al. Effect of ion irradiation on superconducting
thin films. APL Materials. 2024;12(7). doi:10.1063/5.0202851
apa: Kohopää, K., Ronzani, A., Jabdaraghi, R. N., Bera, A., Ribeiro, M., Hazra,
D., … Kemppinen, A. (2024). Effect of ion irradiation on superconducting thin
films. APL Materials. AIP Publishing. https://doi.org/10.1063/5.0202851
chicago: Kohopää, Katja, Alberto Ronzani, Robab Najafi Jabdaraghi, Arijit Bera,
Mário Ribeiro, Dibyendu Hazra, Jorden L Senior, et al. “Effect of Ion Irradiation
on Superconducting Thin Films.” APL Materials. AIP Publishing, 2024. https://doi.org/10.1063/5.0202851.
ieee: K. Kohopää et al., “Effect of ion irradiation on superconducting thin
films,” APL Materials, vol. 12, no. 7. AIP Publishing, 2024.
ista: Kohopää K, Ronzani A, Jabdaraghi RN, Bera A, Ribeiro M, Hazra D, Senior JL,
Prunnila M, Govenius J, Lehtinen JS, Kemppinen A. 2024. Effect of ion irradiation
on superconducting thin films. APL Materials. 12(7), 071101.
mla: Kohopää, Katja, et al. “Effect of Ion Irradiation on Superconducting Thin Films.”
APL Materials, vol. 12, no. 7, 071101, AIP Publishing, 2024, doi:10.1063/5.0202851.
short: K. Kohopää, A. Ronzani, R.N. Jabdaraghi, A. Bera, M. Ribeiro, D. Hazra, J.L.
Senior, M. Prunnila, J. Govenius, J.S. Lehtinen, A. Kemppinen, APL Materials 12
(2024).
date_created: 2024-07-14T22:01:11Z
date_published: 2024-07-01T00:00:00Z
date_updated: 2025-09-08T08:10:58Z
day: '01'
ddc:
- '530'
department:
- _id: AnHi
doi: 10.1063/5.0202851
ec_funded: 1
external_id:
isi:
- '001260942200003'
file:
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checksum: 32a5cdf0ea9c937f806b6039f3219917
content_type: application/pdf
creator: dernst
date_created: 2024-07-16T06:30:30Z
date_updated: 2024-07-16T06:30:30Z
file_id: '17244'
file_name: 2024_APLMaterial_Kohopaa.pdf
file_size: 9408198
relation: main_file
success: 1
file_date_updated: 2024-07-16T06:30:30Z
fulldoi: https://doi.org/10.1063/5.0202851
has_accepted_license: '1'
intvolume: ' 12'
isi: 1
issue: '7'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: APL Materials
publication_identifier:
eissn:
- 2166-532X
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Effect of ion irradiation on superconducting thin films
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 12
year: '2024'
...
---
OA_place: repository
_id: '18057'
abstract:
- lang: eng
text: "We report relaxation oscillations in a one-dimensional array of Josephson\r\njunctions.
The oscillations are circuit-dual to those ordinarily observed in\r\nsingle junctions.
The dual circuit quantitatively accounts for temporal\r\ndynamics of the array,
including the dependence on biasing conditions.\r\nInjection locking the oscillations
results in well-developed current plateaux.\r\nA thermal model explains the relaxation
step of the oscillations."
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
acknowledgement: "We gratefully acknowledge support from the MIBA machine shop and
Nanofabrication Facility at IST Austria. Work was supported by Austrian FWF grant
P33692-N (S.M., J.S. and A.P.H.), the European Union’s Horizon 2020 Research and
Innovation program under the Marie Sk lodowska-Curie Grant Agreement No. 754411
(J.S.), and a NOMIS foundation research grant (A.P.H.).\r\n"
article_number: '2408.07829'
article_processing_charge: No
arxiv: 1
author:
- first_name: Soham
full_name: Mukhopadhyay, Soham
id: FDE60288-A89D-11E9-947F-1AF6E5697425
last_name: Mukhopadhyay
orcid: 0000-0001-5263-5559
- first_name: Diego A
full_name: Lancheros Naranjo, Diego A
id: 6c55e976-15b2-11ec-abd3-d790e8937fde
last_name: Lancheros Naranjo
- 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: 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, Lancheros Naranjo DA, Senior JL, Higginbotham AP. Dual relaxation
oscillations in a Josephson junction array. arXiv. doi:10.48550/arXiv.2408.07829
apa: Mukhopadhyay, S., Lancheros Naranjo, D. A., Senior, J. L., & Higginbotham,
A. P. (n.d.). Dual relaxation oscillations in a Josephson junction array. arXiv.
https://doi.org/10.48550/arXiv.2408.07829
chicago: Mukhopadhyay, Soham, Diego A Lancheros Naranjo, Jorden L Senior, and Andrew
P Higginbotham. “Dual Relaxation Oscillations in a Josephson Junction Array.”
ArXiv, n.d. https://doi.org/10.48550/arXiv.2408.07829.
ieee: S. Mukhopadhyay, D. A. Lancheros Naranjo, J. L. Senior, and A. P. Higginbotham,
“Dual relaxation oscillations in a Josephson junction array,” arXiv. .
ista: Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. Dual relaxation
oscillations in a Josephson junction array. arXiv, 2408.07829.
mla: Mukhopadhyay, Soham, et al. “Dual Relaxation Oscillations in a Josephson Junction
Array.” ArXiv, 2408.07829, doi:10.48550/arXiv.2408.07829.
short: S. Mukhopadhyay, D.A. Lancheros Naranjo, J.L. Senior, A.P. Higginbotham,
ArXiv (n.d.).
corr_author: '1'
date_created: 2024-09-11T09:25:22Z
date_published: 2024-08-14T00:00:00Z
date_updated: 2026-09-16T22:30:20Z
day: '14'
department:
- _id: AnHi
- _id: GradSch
doi: 10.48550/arXiv.2408.07829
ec_funded: 1
external_id:
arxiv:
- '2408.07829'
fulldoi: https://doi.org/10.48550/arXiv.2408.07829
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2408.07829
month: '08'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 0aa3608a-070f-11eb-9043-e9cd8a2bd931
grant_number: P33692
name: Cavity electromechanics across a quantum phase transition
- _id: eb9b30ac-77a9-11ec-83b8-871f581d53d2
name: Protected states of quantum matter
publication: arXiv
publication_status: draft
related_material:
record:
- id: '20324'
relation: later_version
status: public
- id: '17881'
relation: dissertation_contains
status: public
status: public
title: Dual relaxation oscillations in a Josephson junction array
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '12913'
abstract:
- lang: eng
text: The coexistence of gate-tunable superconducting, magnetic and topological
orders in magic-angle twisted bilayer graphene provides opportunities for the
creation of hybrid Josephson junctions. Here we report the fabrication of gate-defined
symmetry-broken Josephson junctions in magic-angle twisted bilayer graphene, where
the weak link is gate-tuned close to the correlated insulator state with a moiré
filling factor of υ = −2. We observe a phase-shifted and asymmetric Fraunhofer
pattern with a pronounced magnetic hysteresis. Our theoretical calculations of
the junction weak link—with valley polarization and orbital magnetization—explain
most of these unconventional features. The effects persist up to the critical
temperature of 3.5 K, with magnetic hysteresis observed below 800 mK. We show
how the combination of magnetization and its current-induced magnetization switching
allows us to realise a programmable zero-field superconducting diode. Our results
represent a major advance towards the creation of future superconducting quantum
electronic devices.
acknowledgement: We are grateful for the fruitful discussions with Allan MacDonald
and Andrei Bernevig. D.K.E. acknowledges support from the Ministry of Economy and
Competitiveness of Spain through the “Severo Ochoa” program for Centers of Excellence
in R&D (SE5-0522), Fundació Privada Cellex, Fundació Privada Mir-Puig, the Generalitat
de Catalunya through the CERCA program, funding from the European Research Council
(ERC) under the European Union’s Horizon 2020 research and innovation program (grant
agreement no. 852927)” and the La Caixa Foundation. K.T.L. acknowledges the support
of the Ministry of Science and Technology of China and the HKRGC through grants
MOST20SC04, C6025-19G, 16310219, 16309718, and 16310520. J.D.M. acknowledges support
from the INPhINIT ‘la Caixa’ Foundation (ID 100010434) fellowship program (LCF/BQ/DI19/11730021).
Y.M.X. acknowledges the support of HKRGC through Grant No. PDFS2223-6S01.
article_number: '2396'
article_processing_charge: No
article_type: original
author:
- first_name: J.
full_name: Díez-Mérida, J.
last_name: Díez-Mérida
- first_name: A.
full_name: Díez-Carlón, A.
last_name: Díez-Carlón
- first_name: S. Y.
full_name: Yang, S. Y.
last_name: Yang
- first_name: Y. M.
full_name: Xie, Y. M.
last_name: Xie
- first_name: X. J.
full_name: Gao, X. J.
last_name: Gao
- first_name: Jorden L
full_name: Senior, Jorden L
id: 5479D234-2D30-11EA-89CC-40953DDC885E
last_name: Senior
- first_name: K.
full_name: Watanabe, K.
last_name: Watanabe
- first_name: T.
full_name: Taniguchi, T.
last_name: Taniguchi
- first_name: X.
full_name: Lu, X.
last_name: Lu
- 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: K. T.
full_name: Law, K. T.
last_name: Law
- first_name: Dmitri K.
full_name: Efetov, Dmitri K.
last_name: Efetov
citation:
ama: Díez-Mérida J, Díez-Carlón A, Yang SY, et al. Symmetry-broken Josephson junctions
and superconducting diodes in magic-angle twisted bilayer graphene. Nature
Communications. 2023;14. doi:10.1038/s41467-023-38005-7
apa: Díez-Mérida, J., Díez-Carlón, A., Yang, S. Y., Xie, Y. M., Gao, X. J., Senior,
J. L., … Efetov, D. K. (2023). Symmetry-broken Josephson junctions and superconducting
diodes in magic-angle twisted bilayer graphene. Nature Communications.
Springer Nature. https://doi.org/10.1038/s41467-023-38005-7
chicago: Díez-Mérida, J., A. Díez-Carlón, S. Y. Yang, Y. M. Xie, X. J. Gao, Jorden
L Senior, K. Watanabe, et al. “Symmetry-Broken Josephson Junctions and Superconducting
Diodes in Magic-Angle Twisted Bilayer Graphene.” Nature Communications.
Springer Nature, 2023. https://doi.org/10.1038/s41467-023-38005-7.
ieee: J. Díez-Mérida et al., “Symmetry-broken Josephson junctions and superconducting
diodes in magic-angle twisted bilayer graphene,” Nature Communications,
vol. 14. Springer Nature, 2023.
ista: Díez-Mérida J, Díez-Carlón A, Yang SY, Xie YM, Gao XJ, Senior JL, Watanabe
K, Taniguchi T, Lu X, Higginbotham AP, Law KT, Efetov DK. 2023. Symmetry-broken
Josephson junctions and superconducting diodes in magic-angle twisted bilayer
graphene. Nature Communications. 14, 2396.
mla: Díez-Mérida, J., et al. “Symmetry-Broken Josephson Junctions and Superconducting
Diodes in Magic-Angle Twisted Bilayer Graphene.” Nature Communications,
vol. 14, 2396, Springer Nature, 2023, doi:10.1038/s41467-023-38005-7.
short: J. Díez-Mérida, A. Díez-Carlón, S.Y. Yang, Y.M. Xie, X.J. Gao, J.L. Senior,
K. Watanabe, T. Taniguchi, X. Lu, A.P. Higginbotham, K.T. Law, D.K. Efetov, Nature
Communications 14 (2023).
date_created: 2023-05-07T22:01:03Z
date_published: 2023-04-26T00:00:00Z
date_updated: 2023-08-01T14:34:00Z
day: '26'
ddc:
- '530'
department:
- _id: AnHi
doi: 10.1038/s41467-023-38005-7
external_id:
isi:
- '000979744000004'
pmid:
- '37100775'
file:
- access_level: open_access
checksum: a778105665c10beb2354c92d2b295115
content_type: application/pdf
creator: dernst
date_created: 2023-05-08T07:26:40Z
date_updated: 2023-05-08T07:26:40Z
file_id: '12917'
file_name: 2023_NatureComm_DiezMerida.pdf
file_size: 1405588
relation: main_file
success: 1
file_date_updated: 2023-05-08T07:26:40Z
fulldoi: https://doi.org/10.1038/s41467-023-38005-7
has_accepted_license: '1'
intvolume: ' 14'
isi: 1
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
publication: Nature Communications
publication_identifier:
eissn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Symmetry-broken Josephson junctions and superconducting diodes in magic-angle
twisted bilayer graphene
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: 14
year: '2023'
...
---
_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
orcid: 0000-0001-5263-5559
- 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
orcid: 0009-0005-0878-3032
- 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.
corr_author: '1'
date_created: 2023-08-11T07:41:17Z
date_published: 2023-11-01T00:00:00Z
date_updated: 2026-09-16T22:30:20Z
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:
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checksum: 1fc86d71bfbf836e221c1e925343adc5
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creator: dernst
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date_updated: 2024-01-29T11:25:38Z
file_id: '14899'
file_name: 2023_NaturePhysics_Mukhopadhyay.pdf
file_size: 1977706
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file_date_updated: 2024-01-29T11:25:38Z
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intvolume: ' 19'
isi: 1
keyword:
- General Physics and Astronomy
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 1630-1635
project:
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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
publication: Nature Physics
publication_identifier:
eissn:
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issn:
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publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
record:
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relation: dissertation_contains
status: public
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: '10851'
abstract:
- lang: eng
text: Superconductor-semiconductor hybrid devices are at the heart of several proposed
approaches to quantum information processing, but their basic properties remain
to be understood. We embed a twodimensional Al-InAs hybrid system in a resonant
microwave circuit, probing the breakdown of superconductivity due to an applied
magnetic field. We find a fingerprint from the two-component nature of the hybrid
system, and quantitatively compare with a theory that includes the contribution
of intraband p±ip pairing in the InAs, as well as the emergence of Bogoliubov-Fermi
surfaces due to magnetic field. Separately resolving the Al and InAs contributions
allows us to determine the carrier density and mobility in the InAs.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: M. S. acknowledges useful discussions with A. Levchenko and P. A.
Lee, and E. Berg. This research was supported by the Scientific Service Units of
IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication
facility. J. S. and A. G. acknowledge funding from the European Union’s Horizon
2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement
No. 754411.W. M. Hatefipour, W. M. Strickland and J. Shabani acknowledge funding
from Office of Naval Research Award No. N00014-21-1-2450.
article_number: '107701'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Duc T
full_name: Phan, Duc T
id: 29C8C0B4-F248-11E8-B48F-1D18A9856A87
last_name: Phan
- 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: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: M.
full_name: Hatefipour, M.
last_name: Hatefipour
- first_name: W. M.
full_name: Strickland, W. M.
last_name: Strickland
- first_name: J.
full_name: Shabani, J.
last_name: Shabani
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- 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: Phan DT, Senior JL, Ghazaryan A, et al. Detecting induced p±ip pairing at the
Al-InAs interface with a quantum microwave circuit. Physical Review Letters.
2022;128(10). doi:10.1103/physrevlett.128.107701
apa: Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M.,
Shabani, J., … Higginbotham, A. P. (2022). Detecting induced p±ip pairing at the
Al-InAs interface with a quantum microwave circuit. Physical Review Letters.
American Physical Society. https://doi.org/10.1103/physrevlett.128.107701
chicago: Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland,
J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Detecting Induced P±ip
Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” Physical
Review Letters. American Physical Society, 2022. https://doi.org/10.1103/physrevlett.128.107701.
ieee: D. T. Phan et al., “Detecting induced p±ip pairing at the Al-InAs interface
with a quantum microwave circuit,” Physical Review Letters, vol. 128, no.
10. American Physical Society, 2022.
ista: Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn
M, Higginbotham AP. 2022. Detecting induced p±ip pairing at the Al-InAs interface
with a quantum microwave circuit. Physical Review Letters. 128(10), 107701.
mla: Phan, Duc T., et al. “Detecting Induced P±ip Pairing at the Al-InAs Interface
with a Quantum Microwave Circuit.” Physical Review Letters, vol. 128, no.
10, 107701, American Physical Society, 2022, doi:10.1103/physrevlett.128.107701.
short: D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J.
Shabani, M. Serbyn, A.P. Higginbotham, Physical Review Letters 128 (2022).
corr_author: '1'
date_created: 2022-03-17T11:37:47Z
date_published: 2022-03-11T00:00:00Z
date_updated: 2026-04-07T13:25:51Z
day: '11'
department:
- _id: MaSe
- _id: AnHi
doi: 10.1103/physrevlett.128.107701
ec_funded: 1
external_id:
arxiv:
- '2107.03695'
isi:
- '000771391100002'
pmid:
- ' 35333085'
fulldoi: https://doi.org/10.1103/physrevlett.128.107701
intvolume: ' 128'
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.2107.03695
month: '03'
oa: 1
oa_version: Preprint
pmid: 1
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/characterizing-super-semi-sandwiches-for-quantum-computing/
record:
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relation: earlier_version
status: public
- id: '14547'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave
circuit
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 128
year: '2022'
...
---
_id: '10029'
abstract:
- lang: eng
text: Superconductor-semiconductor hybrids are platforms for realizing effective
p-wave superconductivity. Spin-orbit coupling, combined with the proximity effect,
causes the two-dimensional semiconductor to inherit p±ip intraband pairing, and
application of magnetic field can then result in transitions to the normal state,
partial Bogoliubov Fermi surfaces, or topological phases with Majorana modes.
Experimentally probing the hybrid superconductor-semiconductor interface is challenging
due to the shunting effect of the conventional superconductor. Consequently, the
nature of induced pairing remains an open question. Here, we use the circuit quantum
electrodynamics architecture to probe induced superconductivity in a two dimensional
Al-InAs hybrid system. We observe a strong suppression of superfluid density and
enhanced dissipation driven by magnetic field, which cannot be accounted for by
the depairing theory of an s-wave superconductor. These observations are explained
by a picture of independent intraband p±ip superconductors giving way to partial
Bogoliubov Fermi surfaces, and allow for the first characterization of key properties
of the hybrid superconducting system.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: This research was supported by the Scientific Service Units of IST
Austria through resources provided by the MIBA Machine Shop and the nanofabrication
facility. JS and AG were supported by funding from the European Union’s Horizon
2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement
No.754411.
article_number: '2107.03695'
article_processing_charge: No
arxiv: 1
author:
- first_name: Duc T
full_name: Phan, Duc T
id: 29C8C0B4-F248-11E8-B48F-1D18A9856A87
last_name: Phan
- 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: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: M.
full_name: Hatefipour, M.
last_name: Hatefipour
- first_name: W. M.
full_name: Strickland, W. M.
last_name: Strickland
- first_name: J.
full_name: Shabani, J.
last_name: Shabani
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- 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: Phan DT, Senior JL, Ghazaryan A, et al. Breakdown of induced p±ip pairing in
a superconductor-semiconductor hybrid. arXiv. doi:10.48550/arXiv.2107.03695
apa: Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M.,
Shabani, J., … Higginbotham, A. P. (n.d.). Breakdown of induced p±ip pairing in
a superconductor-semiconductor hybrid. arXiv. https://doi.org/10.48550/arXiv.2107.03695
chicago: Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland,
J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Breakdown of Induced P±ip
Pairing in a Superconductor-Semiconductor Hybrid.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2107.03695.
ieee: D. T. Phan et al., “Breakdown of induced p±ip pairing in a superconductor-semiconductor
hybrid,” arXiv. .
ista: Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn
M, Higginbotham AP. Breakdown of induced p±ip pairing in a superconductor-semiconductor
hybrid. arXiv, 2107.03695.
mla: Phan, Duc T., et al. “Breakdown of Induced P±ip Pairing in a Superconductor-Semiconductor
Hybrid.” ArXiv, 2107.03695, doi:10.48550/arXiv.2107.03695.
short: D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J.
Shabani, M. Serbyn, A.P. Higginbotham, ArXiv (n.d.).
date_created: 2021-09-21T08:41:02Z
date_published: 2021-07-08T00:00:00Z
date_updated: 2025-04-15T06:54:43Z
day: '08'
department:
- _id: MaSe
- _id: AnHi
- _id: MiLe
doi: 10.48550/arXiv.2107.03695
ec_funded: 1
external_id:
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language:
- iso: eng
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month: '07'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: arXiv
publication_status: draft
related_material:
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status: public
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relation: later_version
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status: public
title: Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '7530'
abstract:
- lang: eng
text: In developing technologies based on superconducting quantum circuits, the
need to control and route heating is a significant challenge in the experimental
realisation and operation of these devices. One of the more ubiquitous devices
in the current quantum computing toolbox is the transmon-type superconducting
quantum bit, embedded in a resonator-based architecture. In the study of heat
transport in superconducting circuits, a versatile and sensitive thermometer is
based on studying the tunnelling characteristics of superconducting probes weakly
coupled to a normal-metal island. Here we show that by integrating superconducting
quantum bit coupled to two superconducting resonators at different frequencies,
each resonator terminated (and thermally populated) by such a mesoscopic thin
film metal island, one can experimentally observe magnetic flux-tunable photonic
heat rectification between 0 and 10%.
article_number: '40'
article_processing_charge: No
article_type: original
author:
- 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: Azat
full_name: Gubaydullin, Azat
last_name: Gubaydullin
- first_name: Bayan
full_name: Karimi, Bayan
last_name: Karimi
- first_name: Joonas T.
full_name: Peltonen, Joonas T.
last_name: Peltonen
- first_name: Joachim
full_name: Ankerhold, Joachim
last_name: Ankerhold
- first_name: Jukka P.
full_name: Pekola, Jukka P.
last_name: Pekola
citation:
ama: Senior JL, Gubaydullin A, Karimi B, Peltonen JT, Ankerhold J, Pekola JP. Heat
rectification via a superconducting artificial atom. Communications Physics.
2020;3(1). doi:10.1038/s42005-020-0307-5
apa: Senior, J. L., Gubaydullin, A., Karimi, B., Peltonen, J. T., Ankerhold, J.,
& Pekola, J. P. (2020). Heat rectification via a superconducting artificial
atom. Communications Physics. Springer Nature. https://doi.org/10.1038/s42005-020-0307-5
chicago: Senior, Jorden L, Azat Gubaydullin, Bayan Karimi, Joonas T. Peltonen, Joachim
Ankerhold, and Jukka P. Pekola. “Heat Rectification via a Superconducting Artificial
Atom.” Communications Physics. Springer Nature, 2020. https://doi.org/10.1038/s42005-020-0307-5.
ieee: J. L. Senior, A. Gubaydullin, B. Karimi, J. T. Peltonen, J. Ankerhold, and
J. P. Pekola, “Heat rectification via a superconducting artificial atom,” Communications
Physics, vol. 3, no. 1. Springer Nature, 2020.
ista: Senior JL, Gubaydullin A, Karimi B, Peltonen JT, Ankerhold J, Pekola JP. 2020.
Heat rectification via a superconducting artificial atom. Communications Physics.
3(1), 40.
mla: Senior, Jorden L., et al. “Heat Rectification via a Superconducting Artificial
Atom.” Communications Physics, vol. 3, no. 1, 40, Springer Nature, 2020,
doi:10.1038/s42005-020-0307-5.
short: J.L. Senior, A. Gubaydullin, B. Karimi, J.T. Peltonen, J. Ankerhold, J.P.
Pekola, Communications Physics 3 (2020).
date_created: 2020-02-26T13:51:14Z
date_published: 2020-02-25T00:00:00Z
date_updated: 2024-10-15T12:36:24Z
day: '25'
ddc:
- '536'
doi: 10.1038/s42005-020-0307-5
extern: '1'
file:
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content_type: application/pdf
creator: dernst
date_created: 2020-03-03T10:41:13Z
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content_type: application/pdf
creator: dernst
date_created: 2020-03-03T10:41:13Z
date_updated: 2020-07-14T12:48:00Z
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file_name: 42005_2020_307_MOESM1_ESM.pdf
file_size: 1007249
relation: main_file
file_date_updated: 2020-07-14T12:48:00Z
fulldoi: https://doi.org/10.1038/s42005-020-0307-5
has_accepted_license: '1'
intvolume: ' 3'
issue: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
publication: Communications Physics
publication_identifier:
issn:
- 2399-3650
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Heat rectification via a superconducting artificial atom
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: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 3
year: '2020'
...