Quantum interference between multiple impurities in anisotropic superconductors
arXiv:cond-mat/0301225 · doi:10.1103/PhysRevB.67.172505
Abstract
We study the quantum interference between impurities in d-wave superconductors within a potential scattering formalism that easily applies to multiple impurities. The evolution of the low-energy local density of states for both magnetic and nonmagnetic short-ranged scatterers are studied as a function of the spatial configuration of the impurities. Further we discuss the influence of subdominant bulk superconducting order parameters on the interference pattern from multiple impurities.
4 pages, 6 figures