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Ginzburg-Landau equations for a mixed s+d symmetry superconductor with nonmagnetic impurities

Wang Xu, Wonkee Kim, Yong Ren, C. S. Ting

DOI 10.1103/PhysRevB.54.R12693 · Physical Review B

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Abstract

Ginzburg-Landau equations for superconductors with both s- and d-wave coupling in the presence of nonmagnetic impurities are derived from the Gorkov equation microscopically. The impurity effects on the critical temperature of the mixed s+d symmetry superconductor, as well as the coexistent phase, are explored by using these derived equations.

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