1Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826 Korea
2Department of Physics & Astronomy, Seoul National University, Seoul, 08826 Korea
3Department of Emerging Materials Science, DGIST, Daegu, 42988 Korea
4Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Korea
5Korea Institute for Advanced Study, Seoul, 02455 Korea
6National Synchrotron Radiation Research Center, Hsinchu, 30076 Taiwan
7Department of Physics, Kyungpook National University, Daegu, 41566 Korea
8Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025 USA
9Department of Physics, Yonsei University, Seoul, 03021 Korea
10Center 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
11Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
12School of Physical Sciences, University of Chinese Academy of Sciences, 100049 Beijing, China
13Songshan Lake Materials Laboratory, 523808 Dongguan, Guangdong China
14XFEL Beamline Division, Pohang Accelerator Laboratory, Pohang, 37673 Korea
15Department of Physics, Sungkyunkwan University, Suwon, 16419 Korea
16Present Address: Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
