1. School of Sciences, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
2. Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA
3. State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
4. School of Sciences, Inner Mongolia University of Science and Technology, Baotou 014010, People’s Republic of China