1. Institute for Superconducting and Electronic Materials (ISEM), Australia Institute for Innovative Materials, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
2. Department of Materials Science and Engineering & Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230026, P. R. China
3. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States