Kurt Busch^2,1,‡

• ¹Max-Born-Institut, 12489 Berlin, Germany
• ²Department of Physics, AG Theoretische Optik & Photonik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
• ³Department of Physics, Structure Research and Electron Microscopy group, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
• ⁴Center for the Science of Materials Berlin, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
• ⁵Helmholtz-Zentrum Berlin for Materials and Energy, 14109 Berlin, Germany
• ⁶Friedrich-Schiller-University, 07737 Jena, Germany

• ^*Contact author: wzhao@physik.hu-berlin.de
• ^†Contact author: christoph.koch@hu-berlin.de
• ^‡Contact author: kurt.busch@physik.hu-berlin.de