1. Univ. Grenoble Alpes, CEA, CNRS, Grenoble INP, INAC, SPINTEC, F-38000 Grenoble, France
2. Western Digital, 5600 Great Oaks Parkway, San Jose, California 95119, USA
3. Univ. Grenoble Alpes, F-38000 Grenoble, France
4. CEA-LETI MINATEC-Campus, 17 rue des Martyrs, F-38054 Grenoble, France