Theoretical study on vortex lattices in tetragonal superconductors

Noriyuki Nakai, Predrag Miranović, Masanori Ichioka, Kazushige Machida

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    Vortex lattices of four fold symmetric superconductors are studied numerically on the basis of the quasiclassical theory. The four fold symmetric anisotropy of the Fermi velocity or the superconducting gap function causes the vortex lattice transformation. The transformation as observed in LuNi2B2C could be understood with the four fold symmetric anisotropy. We show the temperature and field phase diagram for four fold symmetric superconductors and the spatial structures of the pair potential and zero energy states in the case of the stable square vortex lattice at the low field.

    Original languageEnglish
    Pages (from-to)677-678
    Number of pages2
    JournalPhysica C: Superconductivity and its applications
    Volume388-389
    DOIs
    Publication statusPublished - May 1 2003
    Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
    Duration: Aug 20 2002Aug 27 2002

    Keywords

    • Borocarbide superconductors
    • Four fold symmetric anisotropy
    • Quasiclassical theory
    • Vortex lattice

    ASJC Scopus subject areas

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

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