1. Center for Spinelectronic Materials & Devices, Physics Department, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
2. CNRS, Institut NEEL and Université Grenoble Alpes, 38000 Grenoble, France
3. Physics
Department, Karlsruhe Institute of Technology, Wolfgang-Gaede-Straße 1, 76131 Karlsruhe, Germany
4. Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany