Liang Tian, University of Iceland, Iceland; Rocco Sedona, Amirpasha Mozaffari, Enxhi Kreshpa, Forschungszentrum Jülich, Germany; Claudia Paris, University of Twente, Netherlands; Morris Riedel, University of Iceland, Iceland; Martin Schultz, Gabriele Cavallaro, Forschungszentrum Jülich, Germany