1. Guizhou Provincial Key Laboratory of Computational Nano-Material Science
2. Guizhou Education University
3. Guiyang 550018
4. China
5. School of Physics and Optoelectronic Engineering
6. Xiangtan University
7. Xiangtan
8. Institute for Computational Materials Science
9. School of Physics and Electronics
10. Henan University
11. Kaifeng 475004