1. The Key Laboratory for Magnetism and Magnetic Materials of MOE
2. Department of Physics
3. School of Physical Science and Technology
4. Lanzhou University
5. Lanzhou
6. School of Physics and Engineering
7. Sun Yat-sen University
8. Guangzhou
9. China
10. Quantum Structures Laboratory
11. Department of Electrical and Computer Engineering
12. University of California
13. Riverside
14. USA