Anisotropy of upper critical field for high temperature superconductors

Hiroaki Matsueda, Lui Sakai, Kenji Takanaka

Research output: Contribution to journalArticlepeer-review

Abstract

The anisotropy of high Tc superconductors arises both from the coupling constant and the Fermi surface in the Ginzburg-Landau framework. The anisotropy of the former is expressed by dx2-y2 symmetry. The shapes of the Fermi surface of high Tc superconductors are various and depend on materials and doping ratio. In this paper, we study the anisotropy of the upper critical field Hc2 in the ab plane with dx2-y2 symmetry and with typical shapes of the Fermi surface.

Original languageEnglish
Pages (from-to)1465-1466
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - 2003 May

Keywords

  • Anisotropic Fermi surface
  • Anisotropic upper critical field
  • Pairing symmetry

ASJC Scopus subject areas

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

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