1. MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Fert Beijing Institute, Beihang University, Beijing, China
2. School of Electronics and Information Engineering, Fert Beijing Research Institute, Beihang University, Beijing, China
3. School of Integrated Circuit Science and Engineering, Hefei Innovation Research Institute, Beihang University, Hefei, China
4. School of Computer Science and Engineering, Fert Beijing Research Institute, Beihang University, Beijing, China