1. School of Physics University of Electronic Science and Technology of China Chengdu Sichuan 611731 P. R. China
2. Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu Sichuan 610054 P. R. China
3. School of Life Science and Technology Center for Informational Biology University of Electronic Science and Technology of China Chengdu Sichuan 610054 P. R. China
4. Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR P. R. China
5. AIRBUS Central R & T Materials X Munich 81663 Germany