Physics – Condensed Matter – Superconductivity
Scientific paper
1997-07-29
Physics
Condensed Matter
Superconductivity
9 double column pages, Revtex, 7 figures uuencoded
Scientific paper
10.1103/PhysRevB.58.936
We consider a general class of type-II superconductors which are described by N complex order parameters (OP), 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 -> infinity, which allows us to resolve a recent controversy, by showing that all previous studies are fundamentally flawed.
Bray Alan J.
Chin S-K.
Moore Anna M.
Newman Timothy J.
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