Zakaria M. Abd El-Fattah, Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center and Donostia International Physics Center (DIPC), Manuel Lardizabal 5, 20018 San Sebastián, Spain
Peter Löptien, University of Hamburg, Germany
Lihui Zhou, University of Hamburg, Germany
Alexander A. Khajetoorians, University of Hamburg, Germany
Jens Weibe, University of Hamburg, Germany
Roland Wiesendanger, University of Hamburg, Germany