Affiliation: | 1. State Key Laboratory of Functional Materiais for Informatics, Chinese Academy of Sciences, Shanghai 200050, China ;Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China 2. State Key Laboratory of Functional Materiais for Informatics, Chinese Academy of Sciences, Shanghai 200050, China;Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621900, China 3. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China 4. Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, China |