Publications in Scientific Journals:
R. Ritter, Q. Shen, R.A. Wilhelm, R. Heller, R. Ginzel, J.R. Crespo López-Urrutia, S. Facsko, C. Teichert, F. Aumayr:
"Novel aspects on the irradiation of HOPG surfaces with slow highly charged ions";
Nuclear Instruments & Methods in Physics Research Section B,
As a continuation of our previous work, we present new results regarding the interaction of slow highly
charged ions with HOPG. Lateral atomic force microscopy measurements with calibrated cantilevers were
performed to investigate in more detail the locally enhanced friction at ion impact sites, which has been
reported earlier. For very high charge states, apart from ever-present changes in frictional and electronic
properties, we find evidence for true topographic surface modifications (hillocks). In complementary
studies, we have investigated these structures regarding their conductivity by employing high-resolution
conductive atomic force microscopy. In addition, we demonstrate the possibility to etch ion-induced surface
structures by thermal annealing.
HOPG Highly charged ions Nanostructuring AFM STM Friction
Created from the Publication Database of the Vienna University of Technology.