1. Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, United States
2. Stanford Institute for Materials and Energy
Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
3. School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
4. CAS-Shanghai Science Research Center, 239 Zhang Heng Road, Shanghai 201203, China
5. Physics Department,
Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
6. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
7. Department of Physics, Department of Materials
Science and Engineering, University of Washington, Seattle, Washington 98195, United States
8. Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan (ROC)
9. Electrical Engineering Institute, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
10. Diamond Light Source, Didcot, Oxfordshire OX11 0BW, United Kingdom
11. Elettra-Sincrotrone Trieste ScPA, Trieste, Basovizza 34149, Italy
12. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States