1. Laboratory
for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, Thun CH-3602, Switzerland
2. Laboratory for Nanometallurgy, ETH Zürich, Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland
3. Structure and Nano-/Micromechanics of Materials, Max-Planck-Institute für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany
4. Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse
129, CH-8600 Dübendorf, Switzerland