H. Choi⁹, G. Park⁹, S.-Y. Park⁹, G. Kang⁹, H. Jang^8,9, P. Abdollahi¹⁰, A. Seo¹⁰, C.-C. Kao^1,11, and H. Y. Hwang^2,3,‡

• ¹Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
• ²Department of Applied Physics, Stanford University, Stanford, California 94305, USA
• ³Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
• ⁴Department of Material Science Engineering, Pusan National University, Busan 46241, Republic of Korea
• ⁵Korea Basic Science Institute, Daejeon 34133, Republic of Korea
• ⁶Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
• ⁷Departments of Physics, Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, Republic of Korea
• ⁸Photon Science Center, Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, Republic of Korea
• ⁹PAL-XFEL, Pohang Accelerator Laboratory, Pohang, POSTECH, Gyeongbuk 37673, Republic of Korea
• ¹⁰Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
• ¹¹SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

• ^*Contact author: jslee@slac.stanford.edu
• ^†These authors contributed equally to this work.
• ^‡Contact author: hyhwang@stanford.edu