Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 17: Poster Session I

MA 17.63: Poster

Dienstag, 8. März 2016, 09:30–12:30, Poster B1

High frequency ferromagnetic resonance study of Heusler compounds using a micro-cantilever — •Alexey Alfonsov^1,2, Eiji Ohmichi³, Sabine Wurmehl^1,4, Bernd Büchner^1,4, Brian Peters⁵, Fengyuan Yang⁵, and Hitoshi Ohta^2,3 — ¹Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, IFW Dresden, D-01171 Dresden, Germany — ²Molecular Photoscience Research Center, Kobe University, Kobe 657-8501, Japan — ³Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada, Kobe 657-8501, Japan — ⁴Institut fur Festkörperphysik, Technische Universität Dresden, D-01062 Dresden, Germany — ⁵Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA

Heusler alloys have attracted a considerable attention in recent years since they are predicted to be halfmetallic ferromagnets. Possible 100% spin polarization of their conduction electrons together with high magnetic moments and high values of the Curie temperature give them a significant potential for spintronics applications. In order to create a fast switching and thermally stable spintronic device one should be able to control a magneto-crystalline anisotropy and a Gilbert damping of the used material. One of the most informative experimental methods to study magneto-crystalline anisotropy and Gilbert damping is frequency tunable ferromagnetic resonance (FMR). In this work we present a first study of magneto-crystalline anisotropy and Gilbert damping using a unique high frequency FMR technique where the response is detected by the micro-cantilever.