Volume 120, Number 2, October 2017
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||11 January 2018|
2D massless Dirac Fermi gas model of superconductivity in the surface state of a topological insulator at high magnetic fields
1 Schulich Faculty of Chemistry, Technion-Israel Institute of Technology - Haifa 32000, Israel
2 School of Physics, Peking University - Beijing 100871, China
Received: 8 October 2017
Accepted: 14 December 2017
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, EF and v, but with cyclotron effective mass . Significant deviations from the predicted mapping are found only for very small EF, when the Landau-Level filling factors are smaller than unity, and EF shrinks below the cutoff energy.
PACS: 74.78.-w – Superconducting films and low-dimensional structures / 74.25.Ha – Magnetic properties including vortex structures and related phenomena / 74.20.-z – Theories and models of superconducting state
© EPLA, 2018
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.