1. National Centre for High-Resolution Electron Microscopy Centre for Analysis and Synthesis NanoLund Lund University Lund 221 00 Sweden
2. Department of Materials University of Oxford Parks Roads Oxford OX1 3PH United Kingdom
3. DSI-NRF Centre of Excellence in Strong Materials School of Chemistry University of the Witwatersrand Johannesburg 2050 South Africa
4. Molecular Sciences Institute School of Chemistry University of the Witwatersrand Johannesburg 2050 South Africa
5. Electron Physical Science Imaging Centre Diamond Light Source Ltd. Didcot OX11 0DE United Kingdom