1. Institute of Atomic and Molecular Physics, College of Physics, Sichuan University, Chengdu 610065, P. R. China
2. National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, P. R. China
3. Institute of Nano-Structured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450063, P. R. China
4. Fracture and Reliability Research Institute, School of Engineering, Tohoku University, Sendai 980-8579, Japan
5. HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, P. R. China