Modulated vortex lattice in high fields and gap nodes

Ryusuke Ikeda, Hiroto Adachi

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)


    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
    Issue number21
    Publication statusPublished - Jun 1 2004

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics


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