Distribution of supercurrent switching in graphene under proximity effect
arXiv:1109.6284 · doi:10.1103/PhysRevLett.108.097003
Abstract
We study the stochastic nature of switching current in hysteretic current-voltage characteristics of superconductor-graphene-superconductor (SGS) junctions. We find that the dispersion of the switching current distribution scales with temperature as a power law with the power close to 1/3. This observation is in sharp contrast with the known Josephson junction behavior where switching current dispersion is expected to scale with the power 2/3. We propose an explanation using a generalized version of Kurkijarvi'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.
9 pages, 7 figures
References in corpus (18)
- The electronic properties of graphene
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Graphene: Status and Prospects
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Spatially Resolved Raman Spectroscopy of Single- and Few-Layer Graphene
- Andreev reflection and Klein tunneling in graphene
- Bipolar supercurrent in graphene
- Specular Andreev reflection in graphene
- Phase Coherent Transport of Charges in Graphene Quantum Billiard
- The Josephson critical current in a long mesoscopic S-N-S junction
- Josephson Current and Multiple Andreev Reflections in Graphene SNS Junctions
- Tuning the proximity effect in a superconductor-graphene-superconductor junction
- Probing individual topological tunnelling events of a quantum field via their macroscopic consequences
- Observation of Supercurrent in PbIn-Graphene-PbIn Josephson Junction
- Electrically Tunable Macroscopic Quantum Tunneling in a Graphene-based Josephson Junction
- Phase diffusion in graphene-based Josephson junctions
- Quantum Phase Diffusion in a Small Underdamped Josephson Junction
- Singular length dependence of critical current in SNS bridges
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