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.
arXiv comment14 pages, 3 figures
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