Dependence of proximity-induced supercurrent on junction length in multilayer-graphene Josephson junctions

A. Kanda, T. Sato, H. Goto, H. Tomori, S. Takana, Y. Ootuka, K. Tsukagoshi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report experimental observation of the proximity-induced supercurrent in superconductor-multilayer graphene-superconductor junctions. We find that the supercurrent is a linearly decreasing function of the junction length (separation of the superconducting electrodes), which is quite different from the usual behavior of exponential dependence. We suggest that this behavior originates from the intrinsic large contact resistance between the multilayer and the superconducting electrodes.

Original languageEnglish
Pages (from-to)1477-1480
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume470
Issue number20
DOIs
Publication statusPublished - 2010 Nov 1
Externally publishedYes

Keywords

  • Graphene
  • Josephson junction
  • Proximity effect
  • Supercurrent

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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