1. Center for Superconducting and Magnetic Materials, Department of Physics; National University of Singapore; 2 Science Drive 3 Singapore 117551
2. Key Laboratory for Magnetic and Magnetic Materials of the Ministry of Education; Lanzhou University; Lanzhou 730000 People's Republic of China
3. Department of Electrical and Electronics Engineering; Xiamen University Malaysia; 43900, Sepang Selangor Malaysia