Peng Chen^1,2,4,5, Ro-Ya Liu^1,2,6, Yao Li^1,2, David Flötotto⁷, José Avila⁸, James N. Eckstein^1,2, Shik Shin⁹, Kozo Okazaki^3,*, and T.-C. Chiang^1,2,†

• ¹Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
• ²Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
• ³Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
• ⁴Shanghai Center for Complex Physics, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
• ⁵Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shenyang National Laboratory for Materials Science, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
• ⁶Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
• ⁷Center for Soft Nanoscience, University of Münster, 48149 Münster, Germany
• ⁸Synchrotron SOLEIL and Université Paris-Saclay, L’Orme des Merisiers, BP48, 91190 Saint-Aubin, France
• ⁹Office of University Professor, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan

• ^*Corresponding author. okazaki@issp.u-tokyo.ac.jp
• ^†Corresponding author. tcchiang@illinois.edu
• ^‡These authors contributed equally to this work.