1. Center for Advancing Materials Performance from the Nanoscale & Hysitron Applied Research Center in China, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, P.R. China
2. Department of Mechanical Engineering and Bioengineering, Osaka University, Osaka 565−0871, Japan
3. Center for Elements Strategy Initiative for Structural
Materials, Kyoto University, Kyoto 606-8501, Japan
4. Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
5. Department
of Nuclear Science and Engineering and Department of Materials Science
and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States