1. Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, USA
2. Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California, USA
3. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California, USA
4. Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California, USA
5. Department of Applied Physics, Stanford University, Stanford, California, USA