Structure of a single vortex for a hypothetical p-wave and f-wave superconducting state in Sr2RuO4 -: art. no. 092505

被引：3

作者：

Tewordt, L

Dahm, T

机构：

[1] Univ Hamburg, Inst Theoret Phys 1, D-20355 Hamburg, Germany

[2] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.63.092505

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have calculated the structure of an isolated vortex line near H-c1 on the basis of the Ginzburg-Landau functional for planar Anderson-Brinkman-Morel (ABM) superconducting states of Sr2RuO4. For a nodeless p-wave ABM state and a circular Fermi surface we find the same solution as for s-wave pairing. For tetragonal deformation of the Fermi surface with anisotropy parameter nu (nu = 5/13 for a square) we obtain an additional uniaxial vortex of opposite phase phi within the core region. This yields a small correction of the current density j(phi) and the magnetic field, which are proportional to cos(4 phi). For a nodal f-wave ABM state that is more consistent with recent experiments we obtain analogous results with an effective nu = 1/2 for a circular Fermi surface.

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