1. Hefei Innovation Research Institute, School of Microelectronics, Beihang University, Hefei 230013, China
2. Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China
3. Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, and University of Science and Technology of China, Hefei 230026, China
4. School of Physics and Materials Engineering, Hefei Normal University, Hefei 230601, People's Republic of China
5. Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China