1. School of Physics and Electron Science, Guizhou Education University, Guiyang 550018, China
2. School of Mechanical and Automotive Engineering, Kaifeng University, Kaifeng 475004, China
3. School of Physics and Electronics, Henan University, Kaifeng 475004, China
4. Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China