Theoretical study on the field dependence of the zero energy density of states in an anisotropic gap superconductors

N. Nakai, P. Miranović, M. Ichioka, K. Machida

Research output: Contribution to journalArticle

Abstract

Based on the quasi-classical theory, we calculate the zero energy density of states N(B) in the mixed state for a type II superconductor. N(B) is related to the sommerfeld coefficient γ(B), which gives us useful information for a superconducting gap. The linear portion in γ(B) relative to B c2 and its slope in a low field reflect the gap anisotropy, so that we can distinguish the nodal gap and the anisotropic full gap, and estimate the magnitude of the gap anisotropy.

Original languageEnglish
Pages (from-to)1362-1364
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume66
Issue number8-9
DOIs
Publication statusPublished - Jan 1 2005

Keywords

  • A.Superconductivity
  • D.Electronic structure
  • D.Superconductors

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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