Conductance Characteristics between a Normal Metal and a Superconductor Carrying a Supercurrent
Superconductivity
2009-11-10 v1
Abstract
The low-temperature conductance (G) characteristics between a normal metal and a clean superconductor (S) carrying a supercurrent parallel to the interface is theoretically investigated. Increasing causes lowering and broadening of (1) coherence peaks of s-wave S, and d-wave S at (100) contact, (2) midgap-states-induced zero-bias conductance peak for d-wave S at (110) contact, and (3) Andreev-reflection-induced enhancement of within the gap near the metallic-contact limit. Novel features found include a current-induced central peak and a three-humped structure at intermediate barrier strength, etc.
Cite
@article{arxiv.cond-mat/0312545,
title = {Conductance Characteristics between a Normal Metal and a Superconductor Carrying a Supercurrent},
author = {Degang Zhang and C. S. Ting and C. -R. Hu},
journal= {arXiv preprint arXiv:cond-mat/0312545},
year = {2009}
}
Comments
4 pages, 4 figures