R. J. Arthur¹, Z. Ren⁴, F. Westermeier⁴, M. Sprung⁴, S. M. Hayden⁵, E. Blackburn^3,‡, and J. J. Turner^1,2,§

• ¹SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
• ²Stanford Institute for Materials and Energy Sciences, Stanford University, Stanford, California 94305, USA
• ³Division of Synchrotron Radiation Research, Department of Physics, Lund University, SE-22100 Lund, Sweden
• ⁴Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany
• ⁵H.H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, United Kingdom

• ^*These two authors contributed equally to this work.
• ^†Contact author: lingjias@slac.stanford.edu
• ^‡Contact author: elizabeth.blackburn@sljus.lu.se
• ^§Contact author: joshuat@slac.stanford.edu