Vortex lattice transformation in d-wave superconductors with Pauli paramagnetic effect

Kenta M. Suzuki, Masanori Ichioka, Kazushige Machida

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    By self-consistently solving the Eilenberger equations in a vortex state, we quantitatively evaluate the free energy for various lattice configurations of the d-wave superconductor under applied magnetic fields along to the c-axis, and discuss the dependence of stable configuration on the paramagnetic effect. By the paramagnetic effect, though the distribution of zero energy local density of states does not extend to the nodal direction above the middle fields, it still has good connection with vortex cores at the nodal directions. Then it makes square vortex lattice stable. We show that there is a first-order orientational transition before rocking into the square vortex lattice at low fields.

    Original languageEnglish
    Pages (from-to)S564-S565
    JournalPhysica C: Superconductivity and its applications
    Volume470
    Issue numberSUPPL.1
    DOIs
    Publication statusPublished - Dec 2010

    Keywords

    • Anisotropic superconductors
    • Eilenberger theory
    • Paramagnetic effect
    • 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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