1. Department of Earth Science and EngineeringImperial College LondonLondon UK
2. Center for Electron Nanoscopy, Technical University of DenmarkKongens Lyngby Denmark
3. School of GeoSciences, University of EdinburghEdinburgh UK
4. Department of Physics, CINFTechnical University of DenmarkKongens Lyngby Denmark
5. SuperSTEM LaboratoryDaresbury UK
6. Department of MaterialsUniversity of OxfordOxford UK
7. Now at Physics of Nanostructured Materials Group, Faculty of PhysicsUniversity of ViennaVienna Austria
8. Ernst Ruska‐Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungszentrum JülichJülich Germany