1. State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
2. Department of Physics and Texas Center for Superconductivity at University of Houston (TcSUH), University of Houston, Houston, Texas 77204, United States
3. Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, United States
4. Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China