Mixed-state thermodynamics of superconductors with moderately large paramagnetic effects

Hiroto Adachi, Masanori Ichioka, Kazushige Machida

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    Effects of Pauli paramagnetism on thermodynamic quantities in a vortex state, such as the specific heat C and magnetization M, are studied using the quasiclassical Eilenberger formalism. We demonstrate that with an increase of paramagnetic depairing effect, the sigh of the curvature of the field dependence of C changes from negative to positive, and that the Maki parameter κ2 becomes an increasing function of temperature. Our results provide a natural explanation for the unusual field dependence of C seen in CeCoIn5 in terms of the paramagnetic effect.

    Original languageEnglish
    Pages (from-to)2181-2184
    Number of pages4
    Journaljournal of the physical society of japan
    Volume74
    Issue number8
    DOIs
    Publication statusPublished - Aug 2005

    Keywords

    • CeCoIn
    • Mixed state
    • Paramagnetic effect
    • Thermodynamic quantity

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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