1. College of Physics and Electronic Information, Inner Mongolia University for Nationalities, Tongliao 028043, China
2. Department of Physics, Nanyang Normal University, Nanyang 473061, China
3. Education College of Information Technology, Hubei Nomal University, Huangshi 435002, China
4. Department of Physics and High Pressure Science and Engineering Center, University of Nevada, Las Vegas, Nevada 89154, United States
5. Department of Basic Education, Qinghai University, Xining 810016, China