1. Professor, College of Physics and Electrical Engineering, Northwest Normal Univ., Lanzhou, Gansu 730070, China (corresponding author). ORCID: .
2. Master’s Student, College of Physics and Electrical Engineering, Northwest Normal Univ., Lanzhou, Gansu 730070, China.
3. Ph.D. Student, College of Physics and Electrical Engineering, Northwest Normal Univ., Lanzhou, Gansu 730070, China.