1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education and the School of Physical Science and Technology, Lanzhou University, Lanzhou, China
2. Key Laboratory of Theoretical Physics of Gansu Province, Lanzhou Center for Theoretical Physics, School of Physical Science and Technology, Lanzhou University, Lanzhou, China
3. Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, China