BCS Superconductivity of Dirac Electrons in Graphene Monolayer

Askerbeyli R. T. T., Askerzade İ.

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, vol.32, no.7, pp.1871-1874, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 7
  • Publication Date: 2019
  • Doi Number: 10.1007/s10948-018-4901-7
  • Journal Name: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1871-1874
  • Keywords: Graphene, Dirac spectrum, Critical temperature, e-ph coupling, Coulomb repulsion, CRITICAL-TEMPERATURE, LAYERED SUPERCONDUCTORS, COULOMB REPULSION, FIELD
  • Ankara University Affiliated: Yes

Abstract

In this work, we use the standard Bardeen-Cooper-Schrieffer (BCS) model for Dirac superconductors. We consider the thickness of graphene and substrate material layer in calculation of the Coulomb potential and estimate critical temperature T-c. We also analyze the influence of electron density on the electron-phonon interaction and Coulomb pseudopotential in graphene. Furthermore, we estimate the factor of isotopic shifting in graphene monolayer on substrate.