Local density of states induced by anisotropic impurity scattering in a d-wave superconductor
P. Pisarski, G. Haran
Abstract
We study a single impurity effect on the local density of states in a d-wave superconductor accounting for the momentum-dependent impurity potential. We show that the anisotropy of the scattering potential can alter significantly the spatial dependence of the quasiparticle density of states in the vicinity of the impurity.
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