Singular current response from isolated impurities in d-wave superconductors
Superconductivity
2007-10-30 v2
Abstract
The current response of a d-wave superconductor containing a single impurity is calculated and shown to be singular in the low-temperature limit, leading in the case of strong scattering to a 1/T term in the penetration depth similar to that induced by Andreev surface bound states. For a small number of such impurities, we argue this low- upturn could be observable in cuprate superconductors.
Keywords
Cite
@article{arxiv.cond-mat/0203330,
title = {Singular current response from isolated impurities in d-wave superconductors},
author = {Shan-Wen Tsai and P. J. Hirschfeld},
journal= {arXiv preprint arXiv:cond-mat/0203330},
year = {2007}
}
Comments
4 pages, 2 .eps figures. Minor changes to match the published version