1. Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, People’s Republic of China.
2. Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, People’s Republic of China.
3. Department of Mechanical Engineering, Texas Center for Superconductivity, University of Houston, Houston, TX 77204, USA.