1. School of Physics, Changchun University of Science and Technology, Changchun 130022, China
2. Nuclear Power Institute of China, Chengdu 610213, China
3. Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
4. Zhongshan Institute of Changchun University of Science and Technology, Zhongshan 528637, China