1. Department of Physics and Astronomy,
College of Charleston, Charleston, SC 29424, USA.
2. Department of Mechanical Engineering,
University of South Carolina, Columbia, SC 29208, USA.
3. College of Architecture and Civil Engineering,
Shenyang University of Technology, Shenyang 110870, China.
4. Department of Electrical and Computer Engineering and Quantum Technology Center, University of Maryland,
College Park, MD 20742, USA.
5. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
6. Beijing National Laboratory for Condensed Matter Physics and Institute of Physics,
Chinese Academy of Sciences, Beijing 100190, China.