1. Key Laboratory of Physical Electronics and Devices, Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University 1 , Xi'an, Shaanxi 710049, China
2. School of Materials Science and Engineering, Taiyuan University of Science and Technology 2 , Taiyuan, Shanxi 030024, China
3. National Key Laboratory of Application Specific Integrated Circuit, Hebei Semiconductor Research Institute 3 , Shijiazhuang, Hebei 050051, China
4. State Key Laboratory for Mechanical Behavior of Materials, Center for Spintronics and Quantum System, School of Materials Science and Engineering, Xi'an Jiaotong University 4 , Xi'an, Shaanxi 710049, China