Quantum Interference Phenomena Between Impurity States in d-wave Superconductors
نویسندگان
چکیده
We investigate the mutual influence of impurities in two-dimensional d-wave superconductors involving selfconsistent 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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