Quasiparticle bound states near the interface of high-Tc superconductors

Y. Tanaka, H. Itoh, H. Tsuchiura, Y. Tanuma, J. Inoue, S. Kashiwaya

研究成果: Article査読

3 被引用数 (Scopus)

抄録

In high-Tc superconductor junctions, due to the sign changing behavior of the pair potential, the zero bias conductance peak (ZBCP) appears in the quasiparticle tunneling spectroscopy. In this paper, we will discuss unresolved problems about ZBCP, i.e., effect of magnetic field and Fermi surface. In the former part of the paper, it is shown that ZBCP does not split into two by the magnetic field, when the transparency of the junction is sufficiently large. In the latter part of the paper, we will extend our theory to include the effect of Fermi surface based on the Green's function theory and linear response theory. We will clarify ZBCP always appears for interface even if we take into account of the Fermi surface mismatch at the interface.

本文言語English
ページ(範囲)73-78
ページ数6
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 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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