1. CrayoNano AS, Otto Nielsens
vei 12, NO-7052 Trondheim, Norway
2. Center for Atomic-Scale
Materials Design, Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
3. Solid State Physics and NanoLund, Lund University, Box 118, SE-22100 Lund, Sweden