Field-induced p-wave Superconductivity in Mesoscopic Systems
Superconductivity
2012-07-17 v4 Mesoscale and Nanoscale Physics
Abstract
By using Bogoliubov-de Gennes (BdG) equations, we study superconducting (SC) states in a quasi 2-dimensional system of radius . It is shown that no vortices exist in s-wave SC samples with , the T=0 coherence length. We predict that chiral p-wave states exhibit superconductivity for only in the presence of a vortex with opposite chirality. This {\it induced} SC phase is a consequence of non-zero chirality of the pairing order parameter and implies the presence of chiral edge currents. Our study may be applied to sharply probing the pairing symmetry of unconventional superconductors.
Cite
@article{arxiv.1108.2380,
title = {Field-induced p-wave Superconductivity in Mesoscopic Systems},
author = {Jia-Wei Huo and Wei-Qiang Chen and S. Raghu and Fu-Chun Zhang},
journal= {arXiv preprint arXiv:1108.2380},
year = {2012}
}
Comments
5 pages, 3 figures, more details of the calculation and its extension will be presented in a longer companion paper