Affiliation: | 1. Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK;2. Institute of Chemistry, Martin Luther University, Halle-Wittenberg, Halle, Germany;3. Department of Physics, Zhejiang Sci-Tech University, Hangzhou, P.R. China;4. State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, P.R. China |