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Self-consistent study of Abelian and non-Abelian order in a two-dimensional topological superconductor.
- Source :
-
Physical Review B . Feb2017, Vol. 95 Issue 6, p1-1. 1p. - Publication Year :
- 2017
-
Abstract
- We perform self-consistent studies of two-dimensional (2D) s-wave topological superconductivity (TSC) with Rashba spin-orbit coupling and Zeeman field by solving the Bogoliubov-de Gennes equations. In particular, we examine the effects of a nonmagnetic impurity in detail and show that the nature of the spin-polarized midgap bound state varies significantly depending on the material parameters. Most notably, a nonmagnetic impurity in a 2D s-wave topological superconductor can act like a magnetic impurity in a conventional s-wave superconductor, leading to phase transitions of the ground state as the impurity potential is varied. Furthermore, by solving for the spin-dependent Hartree potential self-consistently along with the superconducting order parameter, we demonstrate that topological charge density waves can coexist with TSC at half filling just as in a conventional s-wave superconductor. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ABELIAN groups
*SUPERCONDUCTORS
*DENSITY
Subjects
Details
- Language :
- English
- ISSN :
- 24699950
- Volume :
- 95
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Physical Review B
- Publication Type :
- Academic Journal
- Accession number :
- 121850711
- Full Text :
- https://doi.org/10.1103/PhysRevB.95.064509