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Berlin 2015 – scientific programme

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O: Fachverband Oberflächenphysik

O 35: Nanostructures at Surfaces

O 35.3: Poster

Tuesday, March 17, 2015, 18:15–21:00, Poster A

FeNi nanoparticle preparation and deposition on W(110) — •Hendrik Bettermann, Matthias Werner, and Mathias Getzlaff — Institute of Applied Physics, University of Duesseldorf

Deposited clusters and nanoparticles are rather interesting objects not only from a fundamental point of view but also for technological applications due to their electronic and magnetic properties which show a strong dependence on particle size. Interactions between nanoparticles and substrate during and after deposition have an important influence on particle properties.

Our contribution is focused on Fe/Ni alloy nanoparticles of up to 5 nm in diameter.

We report on our initial results of a newly installed magnetron sputter aggregation source. Particles are mass/charge filtered in a quadrupole mass selector and deposited on a W(110) substrate. Size and structural properties are investigated by means of scanning tunneling microscopy (STM) under UHV conditions. We compare these results with those of larger nanoparticles of similar composition.

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