1. School of Physics and Materials Science
2. Anhui University
3. Hefei 230601
4. China
5. Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions
6. High Magnetic Field Laboratory of Chinese Academy of Sciences
7. Hefei 230031
8. Department of Chemical and Biomolecular Engineering
9. University of Akron
10. Akron 44325
11. USA