1. School of Materials Science & Engineering/MIIT Key Laboratory of Advanced Metallic & Intermetallic Materials Technology, Nanjing University of Science & Technology, Nanjing, People’s Republic of China
2. Centre for Advanced Structured Materials, MBE, College of Science & Engineering, City University of Hong Kong, Hong Kong, People’s Republic of China
3. International Institute of Green Materials, Josai International University, Togane, Japan
4. Department of Physics, King Abdulaziz University, Jeddah, Saudi Arabia
5. Department of Materials Science & Engineering, The University of Tennessee, Knoxville, USA