1. Global Innovative Center of Advanced Nanomaterials College of Engineering, Science and Environment, University of Newcastle Callaghan New South Wales Australia
2. Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing China
3. Department of Materials Science and Engineering National University of Singapore Queenstown Singapore
4. School of Physics University of Electronic Science and Technology of China Chengdu P. R. China