1. Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
2. State Key Laboratory of Optoelectronic Materials and Technologies
3. School of Chemistry & Chemical Engineering
4. Sun Yat-Sen University
5. Guangzhou, China
6. Frontier Institute of Science and Technology, and College and Science
7. Xi'an Jiaotong University
8. Xi'an 710054, China
9. Institut für Festkörperforschung
10. Forschungszentrum Jülich
11. 52425 Jülich, Germany
12. Centre of Low Temperature Physics Faculty of Science
13. P.J. Šafárik University and Institute of Experimental Physics SAS
14. 041 54 Košice, Slovakia
15. Faculty of Mathematics and Physics
16. Department of Condensed Matter Physics
17. Charles University
18. CZ-12116 Prague 2, Czech Republic