Theoretical study of phase transition in type II superconductors with Pauli paramagnetic effect in high magnetic field

Hiroto Adachi, Ryusuke Ikeda

Research output: Contribution to journalArticle

Abstract

High-field phase diagram of type II superconductors with paramagnetic depairing effect is examined through a theoretical argument and a numerical simulation of a Ginzburg-Landau model with a negative quartic term. Our results strongly suggest, contrary to the argument based on magnetization data in CeCoIn5, that the first-order transition at Hc2(T) in the mean field (MF) approximation is reflected in real systems merely as a crossover and that the thermal phase diagram is similar to that in the ordinary case where the MF transition is of second order.

Original languageEnglish
Pages (from-to)1391-1392
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - May 2003
Externally publishedYes

Keywords

  • Paramagnetic effect
  • Superconducting fluctuation
  • Vortex

ASJC Scopus subject areas

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

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