Dynamically current-driven de Gennes -St James states in Metal-Superconductor junctions
Superconductivity
2016-04-29 v1
Abstract
We investigate the conductance of a Normal-Normal'-Superconductor (NN'S) junction, in which current injection destroys superconductivity in a small region N' of the superconductor, with a size varying with the applied voltage V. Voltage-dependent de Gennes-Saint James (dGSJ) bound states appearing in the N' slab lead to two distinct sets of conductance oscillations. We show that this effect significantly alters the conductance of systems for which m/s such as pnictides ( and being the Ginzburg number and the Fermi velocity, respectively), and we discuss their consequences on the identification of the bosonic modes of strongly coupled superconductors.
Cite
@article{arxiv.1604.08395,
title = {Dynamically current-driven de Gennes -St James states in Metal-Superconductor junctions},
author = {Hervé Cercellier and Hadrien Grasland and H. Q. Luo and X. Y. Lu and D. L. Gong and Z. -S Wang and Thierry Klein},
journal= {arXiv preprint arXiv:1604.08395},
year = {2016}
}