1. College of Physics & Center of Quantum Materials and Devices & Analytical and Testing Center Chongqing University Chongqing 41331 China
2. School of Science Chongqing University of Posts and Telecommunications Chongqing 400065 China
3. Ultrafast Electron Microscopy Laboratory The MOE Key Laboratory of Weak‐Light Nonlinear Photonics School of Physics Nankai University Tianjin 300071 China
4. Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China
5. Jülich Centre for Neutron Science (JCNS) at Heinz Maier‐Leibnitz Zentrum (MLZ) Forschungszentrum Jülich GmbH Lichtenbergstr. 1 D‐85747 Garching Germany
6. State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China
7. Tiangong University Tianjin 300387 China