1. Center
for Advancing Materials Performance from the Nanoscale and Hysitron
Applied Research Center in China, State Key Laboratory for Mechanical
Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China
2. College
of Energy, Xiamen University, Xiamen 361005, People’s Republic of China
3. Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China
4. Department
of Nuclear Science and Engineering and Department of Materials Science
and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States