Affiliation: | 1. Department of Physics, Nanchang University, Nanchang 330031, PR China;2. Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031, PR China;1. Department of Physics, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;2. Key Lab of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan 030024, China |