1 Phonon Science Research Center for Carbon Dioxide, Shanghai Advanced Research Institute, Chinese Academy of Sciences Shanghai 201210 China gaoyi@sari.ac.cn.
2 State Key Laboratory of Organic-Inorganic Composites and College of Chemical Engineering, Beijing University of Chemical Technology Beijing 100029 China chengdj@mail.buct.edu.cn.
3 Key Laboratory of Material Simulation Methods & Software of Ministry of Education, College of Physics, Jilin University Changchun 130012 China wangzg@jlu.edu.cn.
4 Institute of Atomic and Molecular Physics, Jilin University Changchun 130012 China.