Pair-breaking of multi-gap superconductivity under parallel magnetic fields in electric-field-induced surface metallic state
Superconductivity
2017-10-11 v1
Abstract
Roles of paramagnetic and diamagnetic pair-breaking effects in superconductivity in electric-field-induced surface metallic state are studied by Bogoliubov-de Gennes equation, when magnetic fields are applied parallel to the surface. The multi-gap states of sub-bands are related to the depth dependence and the magnetic field dependence of superconductivity. In the Fermi-energy density of states and the spin density, sub-band contributions successively appear from higher-level sub-bands with increasing magnetic fields. The characteristic magnetic field dependence may be a key feature to identify the multi-gap structure of the surface superconductivity.
Cite
@article{arxiv.1709.02491,
title = {Pair-breaking of multi-gap superconductivity under parallel magnetic fields in electric-field-induced surface metallic state},
author = {Masahiro Nabeta and Kenta K. Tanaka and Seiichiro Onari and Masanori Ichioka},
journal= {arXiv preprint arXiv:1709.02491},
year = {2017}
}
Comments
8 pages, 7 figures