affiliation not provided to SSRN, University of Electronic Science and Technology of China (UESTC) - State Key Laboratory of Electronic Thin Films and Integrated Devices, affiliation not provided to SSRN, University of Electronic Science and Technology of China (UESTC) - State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China (UESTC) - State Key Laboratory of Electronic Thin Films and Integrated Devices, Key Laboratory of Spintronics Materials, Devices and Systems of Zhejiang Province, Key Laboratory of Spintronics Materials, Devices and Systems of Zhejiang Province and affiliation not provided to SSRN