1. Kunming University of Science and Technology, Kunming, 650500 China
2. Department of Chemistry, Physics and Atmospheric Science, Jackson State University, 1400 John R. Lynch Street, Jackson, Mississippi 39217, USA
3. National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL, 32310, Unites States
4. Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, USA