*Yi Liu¹, Sandra Benter¹, Renan Da Paixao Maciel², Austin Irish¹, Linnéa Björk¹, Chin Shen Ong², Olle Eriksson², Anders Mikkelsen¹, Rainer Timm¹ (1. NanoLund and Department of Physics, Lund University (Sweden), 2. Department of Physics and Astronomy, Uppsala University (Sweden))

*Jiani Hong¹, Tian Ye¹, Duanyun Cao^2,10, Sifan You³, Yizhi Song¹, Bowei Cheng¹, Zhichang Wang¹, Dong Guan¹, Xinmeng Liu¹, Zhengpu Zhao¹, Xin-Zheng Li^5,6,7,9, Li-Mei Xu^1,6,9, Jing Guo⁴, Ji Chen^5,9, En-Ge Wang^1,6,8,9, Ying Jiang^1,6,9 (1. International Center for Quantum Materials, School of Physics, Peking University (China), 2. Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology (China), 3. Institute of Functional Nano & Soft Materials, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University (China), 4. College of Chemistry, Beijing Normal University (China), 5. School of Physics, Peking University (China), 6. Collaborative Innovation Center of Quantum Matter (China), 7. State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics (China), 8. Songshan Lake Materials Lab, Institute of Physics, CAS and School of Physics, Liaoning University (China), 9. Interdisciplinary Institute of Light-Element Quantum Materials and Research Center for Light-Element Advanced Materials, Peking University (China), 10. Beijing Institute of Technology Chongqing Innovation Center, Chongqing 401120 (China))

*Takaaki Kawamura^1,2, Yuki Fukaya³, Katsuyuki Fukutani^1,3 (1. Institute of Industrial Science, Univ. of Tokyo (Japan), 2. Tokyo Denki Univ. (Japan), 3. Advanced Science Research Center, JAEA (Japan))

*Hiroaki Aoyama¹, Tadashi Abukawa^1,2 (1. IMRAM, Tohoku Univ. (Japan), 2. SRIS, Tohoku Univ. (Japan))

*Jesper Wallentin¹ (1. Synchrotron Radiation Research and NanoLund, Lund University (Sweden))

*Tomoya Takeda¹, Masashi Hamada¹, Yuki Tsujikawa², Izumi Mochizuki³, Takeo Hoshi^3,4, Toshio Hyodo³, Akari Takayama¹ (1. Waseda University (Japan), 2. The University of Tokyo (Japan), 3. Institute of Materials Structure Science, KEK (Japan), 4. Tottori University (Japan))

*Yuji Ishizaki¹, Hiroki Nakatsu¹, Takahiro Ozawa¹, Hirokazu Ueta², Katsuyuki Fukutani^1,2 (1. Univ. of Tokyo (Japan), 2. JAEA (Japan))