1. MIIT Key Laboratory of Spintronics, Fert Beijing Research Institute, School of Integrated Circuit Science and EngineeringSchool of Materials Science and Engineering, Beihang University, Beijing, China
2. Centre de Nanosciences et de Nanotechnologies, Université Paris-Saclay, Palaiseau, France
3. Institute of Physics, Johannes Gutenberg University of Mainz, Mainz, Germany