Mixed-state thermodynamics of superconductors with moderately large paramagnetic effects

Hiroto Adachi, Masanori Ichioka, Kazushige Machida

Research output: Contribution to journalArticle

14 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 1 2005

Keywords

  • CeCoIn
  • Mixed state
  • Paramagnetic effect
  • Thermodynamic quantity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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