Wall, Dirk; Sindermann, Simon; Roos, K.R.; Horn-von Hoegen, Michael; Meyer zu Heringdorf, Frank:
The influence of anisotropic diffusion on Ag nanowire formation
In: Journal of physics / Condensed matter, Jg. 21 (2009), Heft 31, S. 314023
2009Artikel/Aufsatz in ZeitschriftPhysik
Fakultät für Physik » ExperimentalphysikZentrale wissenschaftliche Einrichtungen » Center for Nanointegration Duisburg-Essen (CENIDE)
The influence of anisotropic diffusion on Ag nanowire formation
Wall, DirkLSF; Sindermann, SimonLSF; Roos, K.R.; Horn-von Hoegen, MichaelLSF; Meyer zu Heringdorf, FrankLSF


Photoemission electron microscopy is used to study the growth of single-crystalline silver nanowires on flat and vicinal Si(001) substrates. The growth experiments were performed at various temperatures and showed a temperature dependence of nanowire formation. The nanowires on Si(001) are evenly distributed in the [110] and [110] directions on the surface, whereas on a 4° vicinal surface the wires grow only along the steps, in the [110] direction. This change in wire distribution is attributed to the increasing diffusion anisotropy as the vicinality of the substrate increases.