Relaxation of charge imbalance in a d-wave superconductor
C. H. Choi
DOI 10.1103/PhysRevB.54.3044 · Physical Review B
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Abstract
We study the effect of a nonmagnetic impurity on the relaxation of the charge imbalance in a d-wave superconductor. We compute the electric field as a function of distance in the normal-metal–superconductor junction, while taking into account the effect of the impurity scattering, gap anisotropy, Andreev scattering, and crystal orientation of the order parameter. We compare the results with a highly anisotropic s-wave superconductor and also discuss the effect of the electron-phonon scattering. © 1996 The American Physical Society.
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