1. College of Physics, Chongqing University, Chongqing 401331, P. R. China
2. Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States
3. Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
4. Department of Physics, Chun Yuan Christian University, Chung-Li District, Taoyuan City 32023, Taiwan
5. Department of Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany