Loss and Decoherence at the Quantum Hall-Superconductor Interface.
Publication
, Journal Article
Zhao, L; Iftikhar, Z; Larson, TFQ; Arnault, EG; Watanabe, K; Taniguchi, T; Amet, F; Finkelstein, G
Published in: Physical review letters
October 2023
We perform a systematic study of Andreev conversion at the interface between a superconductor and graphene in the quantum Hall (QH) regime. We find that the probability of Andreev conversion from electrons to holes follows an unexpected but clear trend: the dependencies on temperature and magnetic field are nearly decoupled. We discuss these trends and the role of the superconducting vortices, whose normal cores could both absorb and dephase the individual electrons in a QH edge. Our Letter may pave the road to engineering a future generation of hybrid devices for exploiting superconductivity proximity in chiral channels.
Duke Scholars
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Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
October 2023
Volume
131
Issue
17
Start / End Page
176604
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
Citation
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Zhao, L., Iftikhar, Z., Larson, T. F. Q., Arnault, E. G., Watanabe, K., Taniguchi, T., … Finkelstein, G. (2023). Loss and Decoherence at the Quantum Hall-Superconductor Interface. Physical Review Letters, 131(17), 176604. https://doi.org/10.1103/physrevlett.131.176604
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
October 2023
Volume
131
Issue
17
Start / End Page
176604
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences