Modulated vortex lattice in high fields and gap nodes

Ryusuke Ikeda, Hiroto Adachi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The mean field vortex phase diagram of a quasi-two-dimensional superconductor with a nodal d-wave pairing and with strong Pauli spin depairing is studied in the parallel field case in order to examine the effect of gap nodes on the stability of a Fulde-Ferrell-Larkin-Ovchinnikov- (FFLO-) like vortex lattice. We find through a heuristic argument and a model calculation with a fourfold anisotropic Fermi surface that the FFLO-like state is relatively suppressed as the field approaches a nodal direction. When taking account of available experimental results together, the present result strongly suggests that the pairing symmetry of CeCoIn5 should be of dxy type.

Original languageEnglish
Article number212506
Pages (from-to)212506-1-212506-4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number21
DOIs
Publication statusPublished - Jun 1 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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