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Quantum Interference Phenomena Between Impurity States in d-wave Superconductors

U. Michelucci·F. Venturini·A. P. Kampf
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Abstract

We investigate the mutual influence of impurities in two-dimensional d-wave superconductors involving self-consistent solutions of the Bogoliubov-de Gennes equations. The local order parameter suppression, the local density of states (LDOS) as well as the interference of impurity-induced structures are analyzed. We employ an impurity position averaging scheme for the DOS that does not neglect these interference effects, as the commonly used $T$-matrix approaches do.

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U. Michelucci, F. Venturini, A. P. Kampf. 2001-07-31. Quantum Interference Phenomena Between Impurity States in d-wave Superconductors. https://doi.org/10.1016/s0022-3697(02)00238-x

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