1. Key Laboratory of Electronic and Information Engineering
2. State Ethnic Affairs Commission
3. Southwest Minzu University
4. Chengdu 610041
5. China
6. Materials Characterization and Preparation Center and Department of Physics
7. Southern University of Science and Technology
8. Shenzhen 518055
9. Leshan Normal University
10. Leshan 614000
11. Institute of Chemical Materials
12. China Academy of Engineering Physics
13. Mianyang 621900
14. Institute of Microelectronics and Nanoelectronics
15. College of Information Science and Electronic Engineering
16. Zhejiang University
17. Hangzhou 310007
18. CIMAP
19. UMR 6252
20. CNRS-ENSICAEN-CEA-UCBN
21. 14050 Caen
22. France