1. Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA.
2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
3. Department of Physics, Department of Chemistry and JILA, University of Colorado, Boulder, CO 80309, USA.
4. Departmento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, 39005 Santander, Spain.
5. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
6. Department of Physics, University of California, Berkeley, Berkeley, CA 94720, USA.
7. National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
8. The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
9. School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China.
10. Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK.