1. Institute of Microwave Engineering, TU Darmstadt, 64283 Darmstadt, Germany
2. Merck KGaA, 64293 Darmstadt, Germany
3. IMST GmbH, 47475 Kamp-Lintfort, Germany
4. W.C. Heraeus GmbH, 63405 Hanau, Germany
5. Bundesanstalt für Materialforschung und –prüfung, 12205 Berlin, Germany
6. Institute of Condensed Matter, TU Darmstadt, 64283 Darmstadt, Germany