1. China Spallation Neutron Source (CSNS), Institute of High Energy Physics (IHEP), Chinese Academy of Science(CAS), Dongguan 523803, China
2. Spallation Neutron Source Science Center, Dongguan 523803, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Faculty of Material Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
5. Institute for Advanced Study, Shenzhen University, Shenzhen 508060, China