Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes.
Publication
, Journal Article
Borzenets, IV; Amet, F; Ke, CT; Draelos, AW; Wei, MT; Seredinski, A; Watanabe, K; Taniguchi, T; Bomze, Y; Yamamoto, M; Tarucha, S; Finkelstein, G
Published in: Physical review letters
December 2016
We investigate the critical current I_{C} of ballistic Josephson junctions made of encapsulated graphene-boron-nitride heterostructures. We observe a crossover from the short to the long junction regimes as the length of the device increases. In long ballistic junctions, I_{C} is found to scale as ∝exp(-k_{B}T/δE). The extracted energies δE are independent of the carrier density and proportional to the level spacing of the ballistic cavity. As T→0 the critical current of a long (or short) junction saturates at a level determined by the product of δE (or Δ) and the number of the junction's transversal modes.
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Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
December 2016
Volume
117
Issue
23
Start / End Page
237002
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
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Borzenets, I. V., Amet, F., Ke, C. T., Draelos, A. W., Wei, M. T., Seredinski, A., … Finkelstein, G. (2016). Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes. Physical Review Letters, 117(23), 237002. https://doi.org/10.1103/physrevlett.117.237002
Borzenets, I. V., F. Amet, C. T. Ke, A. W. Draelos, M. T. Wei, A. Seredinski, K. Watanabe, et al. “Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes.” Physical Review Letters 117, no. 23 (December 2016): 237002. https://doi.org/10.1103/physrevlett.117.237002.
Borzenets IV, Amet F, Ke CT, Draelos AW, Wei MT, Seredinski A, et al. Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes. Physical review letters. 2016 Dec;117(23):237002.
Borzenets, I. V., et al. “Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes.” Physical Review Letters, vol. 117, no. 23, Dec. 2016, p. 237002. Epmc, doi:10.1103/physrevlett.117.237002.
Borzenets IV, Amet F, Ke CT, Draelos AW, Wei MT, Seredinski A, Watanabe K, Taniguchi T, Bomze Y, Yamamoto M, Tarucha S, Finkelstein G. Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes. Physical review letters. 2016 Dec;117(23):237002.
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
December 2016
Volume
117
Issue
23
Start / End Page
237002
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences