1. State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering,
Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
2. School of Chemistry and Chemical Engineering,
Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
3. School of Physical Science and Technology & Shanghai Key Laboratory of High-resolution Electron Microscopy,
Shanghai Tech University, Shanghai 201210, P. R. China.
4. Wuhan National High Magnetic Field Center,
Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
5. College of Physics and Energy,
Fujian Normal University, Fuzhou 350117, P. R. China.