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2D massless Dirac Fermi gas model of superconductivity in the surface state of a topological insulator at high magnetic fields

Journal Article


Abstract


  • The Nambu-Gorkov Green's function approach is applied to strongly type-II superconductivity in a 2D spin-momentum-locked (Weyl) Fermi gas model at high perpendicular magnetic fields. The resulting phase diagram can be mapped onto that derived for the standard, parabolic band-structure model, having the same Fermi surface parameters, E F and v, but with cyclotron effective mass . Significant deviations from the predicted mapping are found only for very small E F, when the Landau-Level filling factors are smaller than unity, and E F shrinks below the cutoff energy.

UOW Authors


  •   Duan, Wenye (external author)

Publication Date


  • 2017

Published In


  • EPL  Journal

Citation


  • Zhuravlev, V., Duan, W., & Maniv, T. (2017). 2D massless Dirac Fermi gas model of superconductivity in the surface state of a topological insulator at high magnetic fields. EPL, 120(2). doi:10.1209/0295-5075/120/27004

Scopus Eid


  • 2-s2.0-85040920599

Web Of Science Accession Number


Volume


  • 120

Issue


  • 2

Place Of Publication


Abstract


  • The Nambu-Gorkov Green's function approach is applied to strongly type-II superconductivity in a 2D spin-momentum-locked (Weyl) Fermi gas model at high perpendicular magnetic fields. The resulting phase diagram can be mapped onto that derived for the standard, parabolic band-structure model, having the same Fermi surface parameters, E F and v, but with cyclotron effective mass . Significant deviations from the predicted mapping are found only for very small E F, when the Landau-Level filling factors are smaller than unity, and E F shrinks below the cutoff energy.

UOW Authors


  •   Duan, Wenye (external author)

Publication Date


  • 2017

Published In


  • EPL  Journal

Citation


  • Zhuravlev, V., Duan, W., & Maniv, T. (2017). 2D massless Dirac Fermi gas model of superconductivity in the surface state of a topological insulator at high magnetic fields. EPL, 120(2). doi:10.1209/0295-5075/120/27004

Scopus Eid


  • 2-s2.0-85040920599

Web Of Science Accession Number


Volume


  • 120

Issue


  • 2

Place Of Publication