1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
2. China Academy of Engineering Physics, Mian Shan Road 64, Mian Yang 621900, China
3. 26th Institute of China Electronics Technology Group Corporation, Huayuan Road 14, Nan An District, Chongqing 40060, China