Density of states in a superconductor carrying a supercurrent
Superconductivity
2009-11-10 v1 Mesoscale and Nanoscale Physics
Abstract
We have measured the tunneling density of states (DOS) in a superconductor carrying a supercurrent or exposed to an external magnetic field. The pair correlations are weakened by the supercurrent, leading to a modification of the DOS and to a reduction of the gap. As predicted by the theory of superconductivity in diffusive metals, we find that this effect is similar to that of an external magnetic field.
Cite
@article{arxiv.cond-mat/0302153,
title = {Density of states in a superconductor carrying a supercurrent},
author = {A. Anthore and H. Pothier and D. Esteve},
journal= {arXiv preprint arXiv:cond-mat/0302153},
year = {2009}
}
Comments
To be published in Physical Review Letters