Mixed phases in U(N) superconductivity

M. A. Moore, T. J. Newman, A. J. Bray, S.-K. Chin

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)


    We consider a general class of type-II superconductors which are described by N complex order parameters (OP's), with an overall U(N) symmetry for the energy functional. In the lowest-energy state, each OP adopts its own particular lattice structure, making the spatial variation of the overall condensate very complex. We present detailed results for the case N=2. We also treat the limit N?8, which allows us to resolve a recent controversy, by showing that all previous studies are fundamentally flawed.
    Original languageEnglish
    Pages (from-to)936-943
    Number of pages8
    JournalPhysical Review B: Condensed matter and materials physics
    Issue number2
    Publication statusPublished - 1 Jul 1998


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