Quantum interference in dirty d-wave superconductors
超导电性
2009-11-11 v1
摘要
The local differential tunneling conductance on a Zn impurity in a disordered d-wave superconductors is studied. Quantum interference between many impurities leads to definitive quasiparticle spectra. We suggest that an elaborate analysis on impurity-induced spectra with quantum interference effect included may be able to pin down the sign and strength of the scattering potential of a Zn impurity in low density limit. Numerical simulations calculated with appropriately determined impurity parameters are in satisfactory agreement with the observations from scanning tunneling microscopy (STM) experiments even in subtle details.
引用
@article{arxiv.cond-mat/0603302,
title = {Quantum interference in dirty d-wave superconductors},
author = {Hong-Yi Chen and Lingyin Zhu and C. S Ting},
journal= {arXiv preprint arXiv:cond-mat/0603302},
year = {2009}
}