skip to main content

Theory of low-energy behaviors in topological s-wave pairing superconductors

Ota, Y ; Nagai, Y ; Machida, M

Physica C: Superconductivity and its applications, 15 November 2015, Vol.518, pp.5-9 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por
  • Título:
    Theory of low-energy behaviors in topological s-wave pairing superconductors
  • Autor: Ota, Y ; Nagai, Y ; Machida, M
  • Assuntos: Topological Superconductors ; Dirac-Type Dispersion ; Large-Mass Expansion ; Mixture of P- and S-Wave States ; Topological Superconductors ; Dirac-Type Dispersion ; Large-Mass Expansion ; Mixture of P- and S-Wave States ; Physics
  • É parte de: Physica C: Superconductivity and its applications, 15 November 2015, Vol.518, pp.5-9
  • Descrição: •We construct a low-energy effective theory of topological s-wave pairing superconductors.•Our approach is second-order perturbation with respect to the mass in the Dirac-type dispersion.•The effective superconducting gap is a mixture of p- and s-wave-like components.•The primary contribution is the p-wave component, but the s-wave part is not negligible in a massless limit.•The effective theory is useful for understanding impurity effects in a topological superconductor. We construct a low-energy effective theory of topological s-wave pairing superconductors, focusing on the mean-field model of superconductor CuxBi2Se3. Our approach is second-order perturbation with respect to the inverse of the mass (i.e., large-mass expansion) in the Dirac-type electron dispersion from topological insulator Bi2Se3. Since the Dirac-type dispersion with a large mass describes non-relativistic electrons, the large-mass expansion corresponds to a low-energy theory with respect...
  • Idioma: Inglês

Buscando em bases de dados remotas. Favor aguardar.