1. Henan Key Laboratory of High Temperature Functional Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou450001, China
2. Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou450001, China
3. MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede7500 AE, the Netherlands
4. National Supercomputing Center in Zhengzhou, Zhengzhou University, Zhengzhou, Henan450001, China
5. Henan Institute of Product Quality Supervision and Inspection, Zhengzhou450014, China