1. Department of Physics & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
2. School for Engineering of Matter Transport and Energy, Arizona State University, Tempe, Arizona 85287-6106, United States
3. Fraunhofer Institute for Mechanics of Materials IWM, 79108 Freiburg, Germany
4. Department of Physics, Arizona State University, Tempe, Arizona 85287-1504, United States
5. Sorbonne Université, Muséum National d’Histoire Naturelle, UMR CNRS 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, 75005 Paris, France
6. Ernst Ruska-Centre (ER-C 2), Forschungszentrum Jülich, 52428 Jülich, Germany