作者机构:[1]Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China, [2]Graduate School of Chinese Academy of Sciences, Beijing 100080, China
相关基金:This work is supported by the National Natural Science Foundation of China (No.11035009, 10979074, 10775168 and 10975174), Major State Basic Research Development Program in China (No. 2007CB815004), Foundation for Developing Science and Technology in Shanghai (No. 09JC1416800), and Knowledge Innovation Project of Chinese Academy of Sciences under (No. KJCX2-EW-N01).