Supercurrent Flow in Multiterminal Graphene Josephson Junctions
Abstract
We investigate the electronic properties of ballistic planar Josephson junctions with multiple super- conducting terminals. Our devices consist of monolayer graphene encapsulated in boron nitride with molybdenum- rhenium contacts. Resistance measurements yield multiple resonant features, which are attributed to supercurrent flow among adjacent and nonadjacent Josephson junctions. In particular, we find that superconducting and dissipative currents coexist within the same region of graphene. We show that the presence of dissipative currents primarily results in electron heating and estimate the associated temperature rise. We find that the electrons in encapsulated graphene are efficiently cooled through the electron-phonon coupling.
- Authors:
-
[3];
[5];
- Duke Univ., Durham, NC (United States)
- Appalachian State Univ., Boone, NC (United States)
- National Inst. for Materials Science (NIMS), Tsukuba (Japan). Advanced Materials Lab.
- National Inst. for Materials Science (NIMS), Tsukuba (Japan). Advanced Materials Lab.
- City Univ. of Hong Kong, Kowloon (Hong Kong)
- Publication Date:
- Research Org.:
- Duke Univ., Durham, NC (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1737514
- Grant/Contract Number:
- SC0002765
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Volume: 19; Journal Issue: 2; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Graphene; Josephson junctions; superconductivity; ballistic Josephson junctions; multiterminal current flow; electron−phonon coupling
Citation Formats
Draelos, Anne W., Wei, Ming-Tso, Seredinski, Andrew, Li, Hengming, Mehta, Yash, Watanabe, Kenji, Taniguchi, Takashi, Borzenets, Ivan V., Amet, François, and Finkelstein, Gleb. Supercurrent Flow in Multiterminal Graphene Josephson Junctions. United States: N. p., 2019.
Web. doi:10.1021/acs.nanolett.8b04330.
Draelos, Anne W., Wei, Ming-Tso, Seredinski, Andrew, Li, Hengming, Mehta, Yash, Watanabe, Kenji, Taniguchi, Takashi, Borzenets, Ivan V., Amet, François, & Finkelstein, Gleb. Supercurrent Flow in Multiterminal Graphene Josephson Junctions. United States. https://doi.org/10.1021/acs.nanolett.8b04330
Draelos, Anne W., Wei, Ming-Tso, Seredinski, Andrew, Li, Hengming, Mehta, Yash, Watanabe, Kenji, Taniguchi, Takashi, Borzenets, Ivan V., Amet, François, and Finkelstein, Gleb. Tue .
"Supercurrent Flow in Multiterminal Graphene Josephson Junctions". United States. https://doi.org/10.1021/acs.nanolett.8b04330. https://www.osti.gov/servlets/purl/1737514.
@article{osti_1737514,
title = {Supercurrent Flow in Multiterminal Graphene Josephson Junctions},
author = {Draelos, Anne W. and Wei, Ming-Tso and Seredinski, Andrew and Li, Hengming and Mehta, Yash and Watanabe, Kenji and Taniguchi, Takashi and Borzenets, Ivan V. and Amet, François and Finkelstein, Gleb},
abstractNote = {We investigate the electronic properties of ballistic planar Josephson junctions with multiple super- conducting terminals. Our devices consist of monolayer graphene encapsulated in boron nitride with molybdenum- rhenium contacts. Resistance measurements yield multiple resonant features, which are attributed to supercurrent flow among adjacent and nonadjacent Josephson junctions. In particular, we find that superconducting and dissipative currents coexist within the same region of graphene. We show that the presence of dissipative currents primarily results in electron heating and estimate the associated temperature rise. We find that the electrons in encapsulated graphene are efficiently cooled through the electron-phonon coupling.},
doi = {10.1021/acs.nanolett.8b04330},
journal = {Nano Letters},
number = 2,
volume = 19,
place = {United States},
year = {Tue Jan 08 00:00:00 EST 2019},
month = {Tue Jan 08 00:00:00 EST 2019}
}
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Works referencing / citing this record:
Engineering the Floquet spectrum of superconducting multiterminal quantum dots
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- Mélin, Régis; Danneau, Romain; Yang, Kang
- American Physical Society (APS)
Engineering the Floquet spectrum of superconducting multiterminal quantum dots
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