1. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
2. Shanxi Key Laboratory of Advanced Magnesium-Based Materials, Taiyuan University of Technology, Taiyuan 030024, China
3. Department of Applied Physics, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
4. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
5. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China