1. School of Physics and Electronics
2. Hunan Key Laboratory for Supermicrostructure and Ultrafast Process
3. Central South University
4. Changsha
5. P. R. China
6. Department of Electronic Materials Engineering
7. Research School of Physics & Engineering
8. The Australian National University
9. Canberra
10. Australia
11. Institute for Biomedical Materials and Devices (IBMD)
12. Faculty of Science
13. University of Technology Sydney
14. Sydney