Affiliation: | 1. Department of Materials, Department of Physics and Molecular, Cellular & Developmental Biology Department, University of California at Santa Barbara, CA, USA;2. Institute of Physics, Academia Sinica, Taipei, Taiwan;3. National Synchrotron Radiation Research Center, Hsinchu, Taiwan;4. Department of Electrophysics, National Chiao‐Tung University, Hsinchu, Taiwan;5. Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA |