Effect of Order-Parameter Suppression on Scattering by Isolated Impurities in Asymmetric Bands
Superconductivity
2009-10-31 v1
Abstract
The single-impurity problem in d-wave superconductors with asymmetric bands is discussed. The effect of local order parameter suppression near the impurity is to shift the quasiparticle resonance. Contrary to previous work [A. Shnirman et al., Phys. Rev. B 60, 7517 (1999)] we find that the direction of the shift is not universally towards the strong scattering limit.
Keywords
Cite
@article{arxiv.cond-mat/9912158,
title = {Effect of Order-Parameter Suppression on Scattering by Isolated Impurities in Asymmetric Bands},
author = {W. A. Atkinson and P. J. Hirschfeld and A. H. MacDonald},
journal= {arXiv preprint arXiv:cond-mat/9912158},
year = {2009}
}
Comments
2 pages, 1 figure, proceedings for M2S-HTSC-VI