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 journalArticlepeer-review

    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 - 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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