Distinguishing d-wave from highly anisotropic s-wave superconductors
摘要
Systematic impurity doping in the Cu-O plane of the hole-doped cuprate superconductors may allow one to decide between unconvention al ("d-wave") and anisotropic conventional ("s-wave") states as possible candidates for the order parameter in these materials. We show that potential scattering of any strength always increases the gap minima of such s-wave states, leading to activated behavior in temperature with characteristic impurity concentration dependence in observable quantities such as the penetration depth. A magnetic component to the scattering may destroy the energy gap and give rise to conventional gapless behavior, or lead to a nonmonotonic dependence of the gap on impurity concentration. We discuss how experiments constrain this analysis.
引用
@article{arxiv.cond-mat/9403021,
title = {Distinguishing d-wave from highly anisotropic s-wave superconductors},
author = {L. S. Borkowski and P. J. Hirschfeld},
journal= {arXiv preprint arXiv:cond-mat/9403021},
year = {2010}
}
备注
5 pages