1. Laboratory
for Nanometallurgy (LNM), Department of Materials Science, ETH Zurich, CH-8093 Zürich, Switzerland
2. Laboratory
for Micro- and Nanotechnology (LMN), Paul Scherrer Institut, CH-5232 Villigen, Switzerland
3. Scientific
Center for Optical and Electron Microscopy (SCOPEM), ETH Zurich, CH-8093 Zürich, Switzerland
4. SOITEC, Parc Technologique
des Fontaines, 38190 Bernin, France