Gate-controlled superconducting proximity effect in ultrathin graphite films

T. Sato, T. Moriki, S. Tanaka, A. Kanda, H. Goto, H. Miyazaki, S. Odaka, Y. Ootuka, K. Tsukagoshi, Y. Aoyagi

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We experimentally investigated electrical transport in thin graphite films about 10 nm thick connected to superconducting leads. Proximity-induced superconductivity was observed and the critical supercurrent strongly depends on the gate voltage. From the maximum-to-minimum ratios of the critical supercurrent and the normal state resistance, we conclude that the major part of the supercurrent flows in a few graphene layers close to the gate electrode.

Original languageEnglish
Pages (from-to)1495-1497
Number of pages3
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number5
Publication statusPublished - 2008 Mar
Externally publishedYes


  • Graphene
  • Graphite
  • Proximity effect
  • Superconductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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