Split of zero-bias conductance peak in normal-metal / d-wave superconductor junctions
Superconductivity
2007-05-23 v4 Mesoscale and Nanoscale Physics
Abstract
Effects of impurity scatterings on the conductance in normal-metal / wave superconductor junctions are discussed by using the single-site approximation. So far, the split of the zero-bias conductance peak has been believed to be an evidence of the broken time reversal symmetry states at the surface of high- superconductors. In this paper, however, it is shown that the impurity scattering near the interface also causes the split of the zero-bias conductance peak. Typical conductance spectra observed in experiments at finite temperatures and under external magnetic fields are explained well by the present theory.
Keywords
Cite
@article{arxiv.cond-mat/0302287,
title = {Split of zero-bias conductance peak in normal-metal / d-wave superconductor junctions},
author = {Y. Yasano and Y. Tanaka and S. Kashiwaya},
journal= {arXiv preprint arXiv:cond-mat/0302287},
year = {2007}
}
Comments
12 pages, revised version