1. Université Grenoble Alpes, Grenoble F-38000, France
2. CEA/LETI, MINATEC Campus, Grenoble F-38054, France
3. European Synchrotron Radiation Facility, F-38043 Grenoble, France
4. Luxembourg Institute of Science and Technology (LIST)-Materials Research and Technology Department, 41 rue du Brill, L-4422 Belvaux, Luxembourg