Novel anisotropic superconductivity in nano-structured superconductors

Masaru Kato, Tomio Koyama, Masahiko Machida, Masahiko Hayashi, Hiromichi Ebisawa, Takekazu Ishida

Research output: Contribution to journalArticlepeer-review

Abstract

Using the Bogoliubov-de Gennes equation of a tight-binding electron model with attractive on-site and nearest-neighbor sites interactions, we investigate the superconducting structure of nano-structured anisotropic superconductors. Numerical results show that nano-scaled π/4-rotated square d-wave superconductors show various type of superconductivities depending on the size. Especially, s+id superconductivity, appears when size of superconductors is 10 times of coherence length.

Original languageEnglish
Pages (from-to)996-998
Number of pages3
JournalPhysica B: Condensed Matter
Volume403
Issue number5-9
DOIs
Publication statusPublished - 2008 Apr 1

Keywords

  • Bogoliubov-de Gennes equation
  • D-wave superconductors
  • Nano-superconductors

ASJC Scopus subject areas

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

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