1. College of Physics and Institute of Advanced Interdisciplinary Studies Chongqing University Chongqing 401331 China
2. Beijing Key Laboratory of Microstructure and Property of Advanced Materials Beijing University of Technology Beijing 100024 China
3. State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing University Chongqing 401331 China
4. Analytical and Testing Center Chongqing University Chongqing 401331 China