[1] Univ Grenoble Alpes, CNRS, Grenoble INP, LMGP, F-38000 Grenoble, France
[2] Forschungszentrum Juelich, Peter Gruenberg Inst 7, Julich, Germany
[3] Catalonia Inst Energy Res IREC, Barcelona, Spain
[4] Catalan Inst Res & Adv Studies ICREA, Barcelona, Spain
[5] West Virginia Univ, Morgantown, WV USA