1. Laboratory for Computational Physical Sciences (MOE), State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, China
2. Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
3. Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
4. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
5. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
6. Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
7. CNR-SPIN, c/o Department of Physical and Chemical Sciences, University of L’Aquila, Via Vetoio, 67100 Coppito (AQ), L’Aquila, Italy