Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 48: Poster Session II

MA 48.68: Poster

Donnerstag, 10. März 2016, 15:00–18:00, Poster B1

Investigation of spin-orbit torque effects in topological insulating half-Heusler / ferromagnetic hybrid structures — •Jan Haskenhoff^1,2, Benedikt Ernst³, Robin Klett^1,2, Karsten Rott^1,2, Claudia Felser³, and Günter Reiss^1,2 — ¹Physics Department Bielefeld university, 33615 Bielefeld, Germany — ²Center for Spinelectronic Materials and Devices, Universitätsstraße 25, 33604 Bielefeld, Germany — ³Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany

Topological insulators (TI) represent a new quantum state of matter, which host spin-polarized conducting surface channels paired with an insulating bulk. Due to the strong intrinsic spin-orbit coupling, TIs are promising candidates for spin-orbit torque measurements. Furthermore many ternary Heusler compounds are predicted to have topological nontrivial properties. Therefore we investigate spin-orbit torque effects of different TI Heusler / ferromagnetic hybrid structures like e.g. YPdBi/Fe by performing harmonic resistance measurements in a rotating magnetic field up to 1T at a temperature range from 2K to 300K.