1. Department of Physics and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China
2. Materials Genome Institute, Shanghai University, Shanghai 200444, China
3. Bragg Institute, Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234, Australia
4. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
5. Analysis and Measurement Center and Laboratory for Microstructures of Shanghai University, Shanghai 200444, China