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Strong potential impurities on the surface of a topological insulator
Annica M. Black-Schaffer, Alexander V. Balatsky
Topological insulators (TIs) are said to be stable against non-magnetic impurity scattering due to suppressed backscattering in the Dirac surface states. We solve a lattice model o…
Majorana fermions in spin-orbit coupled ferromagnetic Josephson junctions
Annica M. Black-Schaffer, Jacob Linder
We study all possible Majorana modes in two-dimensional spin-orbit coupled ferromagnetic superconductor-normal state-superconductor (SNS) Josephson junctions and propose experiment…
Magnetization dynamics and Majorana fermions in ferromagnetic Josephson junctions along the quantum spin Hall edge
Annica M. Black-Schaffer, Jacob Linder
We investigate the interplay between ferromagnetic and superconducting order at the edge of a quantum spin Hall insulator. Using complementary analytical and self-consistent numeri…