1. CAS
Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS
Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
3. Beijing
National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
4. Laboratory
of Computation Materials Physics, Department of Physics, Jiangxi Normal University, Nanchang 330022, China
5. Brookhaven National Laboratory, Upton, New York 11973, United States