Local density of states near the surface of high-Tc superconductors under magnetic field based on the t-J model

Y. Tanuma, Y. Tanaka, H. Tsuchiura, S. Kashiwaya

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Quasiparticle states near the surface of d-wave superconductors in a magnetic field are studied based on the t-J model on the 2D square lattice within the Gutzwiller approximation. We perform a calculation on the local density of states near the (1 1 0) surface, by changing the hole concentration in the presence of applied magnetic field. In the low-doping region, the zero-energy peak (ZEP) is not sensitive to the applied magnetic field. With the increase of the hole concentration, the ZEP splits into two due to the broken time reversal symmetry state with induced subdominant s-wave like component. Even in this case, the position of split peak is insensitive to the applied magnetic field.

本文言語English
ページ(範囲)147-151
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
367
1-4
DOI
出版ステータスPublished - 2002 2月 15
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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