... the Natural Science Foundation of China (GrantNos. 10874212 and 61106013), the National High Technology Research and Development Program of China (Grant No. 2009AA033101), and the NationalBasic ... lczhao@hit.edu.cn1School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China2National Laboratory for Condensed Matter Physics, Institute of Physics,Chinese Academy ... of Technology, Harbin, 150001, China2National Laboratory for CondensedMatter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing,100190, China3Engineering Research Center of...