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O: Fachverband Oberflächenphysik

O 52: Nanostructures at Surfaces: Dots, Particles, Clusters

O 52.6: Poster

Dienstag, 21. März 2017, 18:30–20:30, P1C

Deposition and temperature dependent surface interaction of Co nanoparticles on W(1 1 0) — •Jens Schubert, Hendrik Bettermann, and Mathias Getzlaff — Institute of Applied Physics, Heinrich-Heine-Universität Düsseldorf

Our research involves supported nanoparticles of 3d-metal alloys. Temperature dependent behavior is interesting for fundamental research and possible technological applications. These properties depend strongly on the nanoparticles' size.

The nanoparticles are produced under UHV conditions by a magnetron sputter source (Haberland-type), which gives access to sizes ranging from 3nm to >12nm.

Our approach is to measure surface structure and cleanliness with LEED (low energy electron diffraction) and the temperature dependent interaction of cobalt nanoparticles on a W(110) surface with spatial resolution by scanning tunnelling microscopy (STM) before and after heating.