1. State Key Lab for Metal Matrix Composites
2. Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education)
3. School of Physics and Astronomy
4. Shanghai Jiao Tong University
5. 200240 Shanghai
6. Shanghai Key Laboratory of High Temperature Superconductors
7. Department of Physics
8. Shanghai University
9. 200444 Shanghai
10. China
11. Department of Materials Physics
12. Institute of Experimental Physics
13. Slovak Academy of Science
14. 04001 Košice
15. Slovakia