Helical states and solitons in noncentrosymmetric superconductors
arXiv:1403.7101 · doi:10.1103/PhysRevB.89.094503
Abstract
We show how the two-band nature of superconductivity in noncentrosymmetric compounds leads to a variety of novel nonuniform superconducting states induced by a magnetic field. At low fields, a two-band helical state is realized, with a distinctly non-BCS quasiparticle spectrum. At high fields, the superconducting state becomes unstable towards the formation of a lattice of topological phase solitons.
14 pages, 3 figures
References in corpus (7)
- Topological Phases of Noncentrosymmetric Superconductors: Edge States, Majorana Fermions, and the Non-Abelian Statistics
- Ginzburg-Landau theory of vortices in a multi-gap superconductor
- Topological spin-current in non-centrosymmetric superconductors
- Order parameter in superconductors with non-degenerate bands
- Unpaired Electrons in the Heavy-Fermion Superconductor CeCoIn_{5}
- Nonuniform states in noncentrosymmetric superconductors
- Phase soliton and pairing symmetry of a two-band superconductor: Role of the proximity effect