1. Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science and Engineering, Key Laboratory of Materials for Energy Conversion Chinese Academy of Sciences (CAS), University of Science and Technology of China Hefei Anhui China
2. Institute for Superconducting and Electronic Materials, School of Mechanical, Materials, Mechatronics and Biomedical Engineering, Faculty of Engineering and Information Sciences University of Wollongong Wollongong New South Wales Australia
3. Department of Materials Science and Engineering, University of Maryland, College Park College Park Maryland USA
4. Fachgebiet Angewandte Nanophysik Institut für Physik and IMN MacroNano, Technische Universität Ilmenau Ilmenau Germany