1. Fert Beijing Institute, BDBC, Beihang University, Beijing 100191, China
2. School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
3. Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
4. Unité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université Paris-Saclay, Palaiseau 91767, France
5. Univ. Grenoble Alpes, INAC-SPINTEC, F-38000 Grenoble, France; CNRS, SPINTEC, F-38000 Grenoble, France; and CEA, INAC-SPINTEC, F-38000 Grenoble, France
6. School of Materials Science and Engineering, Beihang University, Beijing 100191, China
7. Inston Inc., Los Angeles, California 90095, USA