1. Nanostructured Materials, Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83 Linköping, Sweden
2. Seco Tools AB, 737 82 Fagersta, Sweden
3. Helmholtz-Zentrum Geesthacht (HZG), Max-Planck Str. 1, 21502 Geesthacht, Germany
4. Thin Film Physics, Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83 Linköping, Sweden