Affiliation: | SUN Xiao-Yan1,2 FANG De-Qing1,1) MA Yu-Gang1,2) CAI Xiang-Zhou1 CHEN Jin-Gen1 GUO Wei1 TIAN Wen-Dong1 WANG Hong-Wei1 ZHANG Guo-Qiang1,2 ZHOU Pei)1,2 1 Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China |