Physics – Condensed Matter – Superconductivity
Scientific paper
1997-04-14
Physics
Condensed Matter
Superconductivity
11 pages, 1 figure, submitted to Phys. Rev. Lett
Scientific paper
We describe effects of anisotropy caused by the crystal lattice in d-wave superconductors using effective free energy approach in which only one order parameter, the d-wave order parameter field, is used. All the effects of rotational symmetry breaking, including that of the s-wave mixing, can be parametrized by a single four derivative term. We find solutions for single vortex and the vortex lattice. Extending the formalism to include the time dependence, effects of anisotropy on moving vortex structure are calculated. Both direct and Hall I-V curves as functions of the angle between the current and the crystal lattice orientation are obtained.
Chang Darwin
Mou Chung-Yu
Rosenstein Baruch
Wu Ching-Long
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