N. B. Brookes⁵, D. G. Chica⁶, X. Roy⁶, E. Baldini⁷, J. Pelliciari², V. Bisogni², S. Johnston^8,9, M. Mitrano¹⁰, and M. P. M. Dean^1,§

• ¹Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, New York 11973, USA
• ²National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA
• ³Department of Physics, Columbia University, New York, New York 10027, USA
• ⁴Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
• ⁵European Synchrotron Radiation Facility (ESRF), B.P. 220, F-38043 Grenoble Cedex, France
• ⁶Chemistry Department, Columbia University, New York, New York 10027, USA
• ⁷Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
• ⁸Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37966, USA
• ⁹Institute for Advanced Materials and Manufacturing, The University of Tennessee, Knoxville, Tennessee 37996, USA
• ¹⁰Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA

• ^*Present address: Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
• ^†Present address: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
• ^‡Present address: Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, Tennessee 37132, USA.
• ^§Contact author: mdean@bnl.gov
• ^∥School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.