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Ginzburg-Landau equations for a d-wave superconductor with nonmagnetic impurities

Wang Xu, Yong Ren, C. S. Ting

DOI 10.1103/PhysRevB.53.12481 · Physical Review B

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Abstract

The Ginzburg-Landau equations for a d-wave superconductor with nonmagnetic impurities are derived in the framework of the Gor’kov’s weak-coupling theory of superconductivity. The weak scattering in the Born limit as well as the strong scattering in the unitary limit of the impurities are both considered in the calculation. The effect of impurities on the magnetic field penetration depth and the induced s-wave order parameter are also studied. © 1996 The American Physical Society.

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