Dresden 2020 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 65: Poster Session Topological Topics

TT 65.16: Poster

Donnerstag, 19. März 2020, 15:00–19:00, P2/EG

Phase diagrams of topological superconductors — •Jannis Neuhaus-Steinmetz, Elena Vedmedenko, Thore Posske und Levente Rózsa — Department of Physics, University of Hamburg, Hamburg, Germany

Non-collinear spin structures interacting with s-wave superconductors are promising candidates for topological superconductivity and Majorana physics. We study the interplay between non-collinear magnetic states and superconductivity theoretically by means of tight-binding calculations in combination with Monte Carlo simulations within the Heisenberg model. We derive the parameters of the Heisenberg Hamiltonian by fitting the energy dispersion originating from tight-binding calculations. The resulting magnetic ground states and phase diagrams will be discussed.