1. Integrated Materials Design Laboratory (IMDL), The Australian National University, Canberra, Australian Capital Territory 2601, Australia
2. Smart Materials and Surface Group, University of New South Wales, Sydney, New South Wales 2052, Australia
3. Institute of Semiconductor Electronics (IHT), RWTH Aachen University, Aachen 52074, Germany
4. Laboratorio TASC, IOM-CNR, Area Science Park S.S. 14 km 163.5, Trieste 34149, Italy
5. Central Facility for Electron Microscopy, RWTH Aachen University, Aachen 52074, Germany
6. Ametek GmbH, BU Gatan, Ingolstädter Straße 12, Munich 80807, Germany
7. Elettra Sincrotrone Trieste, Strada Statale 14 km 163.5, Trieste 34149, Italy
8. Department of Applied Mathematics, Research School of Physics and Engineering, The Australian National University, Canberra, Australian Capital Territory 2601, Australia