1. Tianjin International Center for Nanoparticles and Nanosystems Tianjin University Tianjin China
2. Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, School of Materials Science and Engineering Tianjin University Tianjin China
3. Applied Physics Department, College of Physics and Materials Science Tianjin Normal University Tianjin China
4. Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials University of Wollongong North Wollongong New South Wales Australia