1. Stanford Synchrotron Radiation Lightsource; SLAC National Accelerator Laboratory; 2575 Sand Hill Road Menlo Park CA 94025 USA
2. Department of Materials Science and Engineering; Stanford University; Durand Building 496 Lomita Mall Stanford CA 94305 USA
3. School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore