Mixed phases in U(N) superconductivity

TY - JOUR

T1 - Mixed phases in U(N) superconductivity

AU - Moore, M. A.

AU - Newman, T. J.

AU - Bray, A. J.

AU - Chin, S.-K.

PY - 1998/7/1

Y1 - 1998/7/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0001232211

U2 - 10.1103/PhysRevB.58.936

DO - 10.1103/PhysRevB.58.936

M3 - Article

AN - SCOPUS:0001232211

SN - 1550-235X

VL - 58

SP - 936

EP - 943

JO - Physical Review B: Condensed matter and materials physics

JF - Physical Review B: Condensed matter and materials physics

IS - 2

ER -