1. Laboratory of Multifunctional
Materials, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland
2. Laboratory of Crystallography,
Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse
10, 8093 Zurich, Switzerland
3. Electron Microscopy Center, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse
129, 8600 Dübendorf, Switzerland