1. Engineering Research Center for Functional Ceramics of Ministry of Education, School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074, China
2. Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
3. Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518000, P. R. China