Affiliation: | 1. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, P.R. China.zhanglei@hmfl.ac.cn;3. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, P.R. China.;4. High Magnetic Field Laboratory, University of Science and Technology of China, Hefei 230026, P.R. China. |