1 Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea.
2 Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea.
3 Department of Emerging Materials Science, DGIST, Daegu, 42988, Korea.
4 Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Korea.
5 Korea Institute for Advanced Study, Seoul, 02455, Korea.
6 National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan.
7 Department of Physics, Kyungpook National University, Daegu, 41566, Korea.
8 Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
9 Department of Physics, Yonsei University, Seoul, 03021, Korea.
10 Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 200050, Shanghai, China.
11 Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
12 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China.
13 School of Physical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China.
14 Songshan Lake Materials Laboratory, 523808, Dongguan, Guangdong, China.
15 XFEL Beamline Division, Pohang Accelerator Laboratory, Pohang, 37673, Korea.
16 Department of Physics, Sungkyunkwan University, Suwon, 16419, Korea.
17 Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea. sshuhss@gmail.com.
18 Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea. sshuhss@gmail.com.
19 Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea. changyoung@snu.ac.kr.
20 Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea. changyoung@snu.ac.kr.