Zeeman-and orbital-driven phase shifts in planar Josephson junctions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00580343" target="_blank" >RIV/68378271:_____/23:00580343 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0349114" target="_blank" >https://hdl.handle.net/11104/0349114</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsnano.3c04957" target="_blank" >10.1021/acsnano.3c04957</a>
Alternative languages
Result language
angličtina
Original language name
Zeeman-and orbital-driven phase shifts in planar Josephson junctions
Original language description
We perform supercurrent and tunneling spectroscopy measurements on gate-tunable InAs/Al Josephson junctions (JJs) in an in-plane magnetic field and report on phase shifts in the current–phase relation measured with respect to an absolute phase reference. The impact of orbital effects is investigated by studying multiple devices with different superconducting lead sizes. At low fields, we observe gate-dependent phase shifts of up to φ0 = 0.5π, which are consistent with a Zeeman field coupling to highly transmissive Andreev bound states via Rashba spin–orbit interaction. A distinct phase shift emerges at larger fields, concomitant with a switching current minimum and the closing and reopening of the superconducting gap. These signatures of an induced phase transition, which might resemble a topological transition, scale with the superconducting lead size, demonstrating the crucial role of orbital effects.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Nano
ISSN
1936-0851
e-ISSN
1936-086X
Volume of the periodical
17
Issue of the periodical within the volume
18
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
18139-18147
UT code for WoS article
001122198900001
EID of the result in the Scopus database
2-s2.0-85172425735