1. BAM Bundesanstalt für Materialforschung und -prüfung Unter den Eichen 87 12205 Berlin Germany
2. PTB Physikalisch-Technische Bundesanstalt Bundesallee 100 38116 Braunschweig Germany
3. Department of Chemical and Materials Engineering PUC- Catholic University of Rio de Janeiro Rua Marquês de São Vicente 225 Gávea - Rio de Janeiro RJ 22451-900 Brazil
4. Advanced Ceramics University of Bremen Am Biologischen Garten 2 Bremen 28359 Germany
5. MAPEX - Center for Materials and Processes University of Bremen Am Biologischen Garten 2 Bremen 28359 Germany
6. Institute of Physics and Astronomy University of Potsdam Karl-Liebknecht-Str. 24-25 14476 Potsdam Germany