Pair breaking of multigap superconductivity under parallel magnetic fields in the electric-field-induced surface metallic state

Masahiro Nabeta, Kenta K. Tanaka, Seiichiro Onari, Masanori Ichioka

Research output: Contribution to journalArticle

Abstract

The roles of paramagnetic and diamagnetic pair-breaking effects in superconductivity in the electric-field-induced surface metallic state are studied using the Bogoliubov-de Gennes equation when magnetic fields are applied parallel to the surface. The multigap states of the subbands are related to the depth dependence and the magnetic field dependence of the superconductivity. In the Fermi-energy density of states and the spin density, subband contributions successively appear from higher-level subbands with increasing magnetic fields. The characteristic magnetic field dependence may be a key feature to identify the multigap structure of the surface superconductivity.

Original languageEnglish
Article number094522
JournalPhysical Review B
Volume96
Issue number9
DOIs
Publication statusPublished - Sep 19 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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