Effects of interface roughness on d-wave Josephson junctions

S. Shirai, H. Tsuchiura, Y. Tanaka, J. I. Inoue, S. Kashiwaya

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The Josephson current-phase relations in d-wave/d-wave superconductor junctions in the tunnel limit are studied using the two-dimensional extended-Hubbard model. The order parameters are determined in a self-consistent way within the Bogoliubov-de Gennes theory. In this study, we calculate the case of (110) oriented junction which have the atomic scale roughness on their interfaces. In uniform junctions, the anomalous current-phase relation obtained within a quasiclassical theory is qualitatively reproduced. On the other hand, in the junctions with an interface impurity, that anomalous relation disappears.

本文言語English
ページ(範囲)1584-1587
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
357-360
SUPPL. 1
DOI
出版ステータスPublished - 2001 9月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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