1. NaMLab gGmbH, Noethnitzer Strasse
64, 01187 Dresden, Germany
2. Institute
for Metallic Materials, Leibniz Institute for Solid State and Materials Research (IFW) Dresden, P.O. Box 270116, 01171 Dresden, Germany
3. Department of Applied Physics, Eindhoven University of Technology,
P.O. Box 513, 5600 MB Eindhoven, The Netherlands
4. Institute
of Semiconductors and Microsystems, Dresden University of Technology, 01062 Dresden, Germany