1. Key Lab of Artificial Structures and Quantum Control (Ministry of Education)
2. and State Key Lab for Metal Matrix Composites
3. School of Physics and Astronomy
4. Shanghai Jiao Tong University
5. Shanghai
6. Shanghai Key Laboratory of High Temperature Superconductors
7. Department of Physics
8. Shanghai University
9. 200444 Shanghai
10. China
11. CNRS/CRETA
12. 38042 Grenoble Cedex 09
13. France
14. Instrumental Analysis Center
15. Shanghai 200240