Dresden 2017 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 39: Superconductivity: (General) Theory
TT 39.11: Talk
Wednesday, March 22, 2017, 12:15–12:30, HSZ 103
Friedel-oscillations in inhomogeneous topological superconductors — •Lars Lauke1, Mathias Scheurer1, Andreas Poenicke1,2, and Jörg Schmalian1 — 1Institut für Theorie der Kondensierten Materie, Karlsruher Institut für Technologie, Karlsruhe, Deutschland — 2Institut für Theoretische Festkörperphysik, Karlsruher Institut für Technologie, Karlsruhe, Deutschland
In order to investigate Majorana bound states in p-wave superconductors and to reveal the precise influence of boundaries and inhomogeneities on the local structure of competing superconducting order parameters, we solve inhomogeneous Bogoliubov-de Gennes equations. Going beyond the quasi-classical approach we examine in particular the role of Friedel-oscillations due to inhomogeneities and the surface of the superconductor and analyse the distinct behaviour of the p-wave and the surface induced s-wave pairing amplitudes.