Distribution of supercurrent switching in graphene under the proximity effect.
Journal Article
·
· Physical Review Letters
- Materials Science Division
We study the stochastic nature of switching current in hysteretic current-voltage characteristics of superconductor-graphene-superconductor junctions. We find that the dispersion of the switching current distribution scales with temperature as {sigma}{sub I} {proportional_to} T{sup {alpha}{sub G}} with {alpha}{sub G} as low as 1/3. This observation is in sharp contrast to the known Josephson junction behavior where {sigma}{sub I} {proportional_to} T{sup {alpha}{sub J}} with {alpha}{sub J} = 2/3. We propose an explanation using a generalized version of Kurkijaervi's theory for the flux stability in rf-SQUID and attribute this anomalous effect to the temperature dependence of the critical current which persists down to low temperatures.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1041002
- Report Number(s):
- ANL/MSD/JA-73357
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 108; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Charge transport in junctions between {ital d}-wave superconductors
Josephson tunneling and the proximity effect
Supercurrent Flow in Multiterminal Graphene Josephson Junctions
Journal Article
·
Sat Jul 01 00:00:00 EDT 1995
· Physical Review, B: Condensed Matter
·
OSTI ID:76435
Josephson tunneling and the proximity effect
Journal Article
·
Mon Aug 01 00:00:00 EDT 1983
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:5517377
Supercurrent Flow in Multiterminal Graphene Josephson Junctions
Journal Article
·
Mon Jan 07 19:00:00 EST 2019
· Nano Letters
·
OSTI ID:1737514