Regensburg 2022 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 1: Topology: Majorana Physics

TT 1.5: Talk

Monday, September 5, 2022, 10:45–11:00, H10

2π domain walls for tunable Majorana devices — •Daniel Hauck¹, Stefan Rex^2,3, and Markus Garst¹ — ¹Karlsruhe Institute of Technology, Institute for Theoretical Solid State Physics, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe — ²Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany — ³Institute for Theoretical Condensed Matter Physics, Karlsruhe Institute of Technology, 76131 Karlsruhe

Superconductor-magnet hybrid structures provide a platform for investigating topological phases with localized Majorana states. Such states have previously been predicted for elongated Skyrmions in the magnetic layer. Here we consider 2π domain walls which are easier to realize and tweak experimentally. We show that localized Majorana states can be found in these systems and investigate possible ranges of parameters. This establishes 2π domain walls as tunable elements for the realization of Majorana devices.