Superconducting symmetries of nano-structured anisotropic superconductors

Masaru Kato, Tomio Koyama, Masahiko Machida, Takekazu Ishida

Research output: Contribution to journalArticlepeer-review


Using the Bogoliubov-de Gennes equation, nano-structured anisotropic superconductors are investigated. The symmetry of order parameter strongly depends on its shape. For π/4 rotated square superconductors, s + id superconductivity becomes stable. And because of broken time-reversal symmetry of this state, there appear spontaneous currents around the boundary. This result shows shape of the superconductors controls their superconducting symmetry.

Original languageEnglish
Pages (from-to)1436-1437
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume460-462 II
Issue numberSPEC. ISS.
Publication statusPublished - 2007 Sept 1
Externally publishedYes


  • Anisotropic superconductivity
  • Bogoliubov-de Gennes equation
  • Nano-superconductivity

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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