Dresden 2014 – scientific programme

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O: Fachverband Oberflächenphysik

O 20: Nanostructures at Surfaces II

O 20.1: Talk

Monday, March 31, 2014, 16:00–16:15, WIL B321

3d nanoparticle deposition on a W(110) surface — •Hendrik Bettermann, Matthias Werner, and Mathias Getzlaff — Institute of Applied Physics, University of Duesseldorf

Nanoparticles and clusters are interesting objects both from a fundamental perspective and for technological applications due to their unique electronic and magnetic behavior. These properties are significantly influenced by size and structure of the particles. Our contribution is focused on FeNi alloy nanoparticles deposited on a W(110) surface, additionally in comparison with other magnetic 3d nanoparticles. The particles are generated by a UHV compatible continously working Arc Cluster Ion Source (ACIS) and subsequently mass selected in a static electric field. Scanning Tunneling Microscopy (STM) is our main method to study these objects. We will report on size and structural properties of FeNi nanoparticles with diameters between 4 and 15 nm which satisfy softlanding conditions at kinetic energies well below 0.1 eV per atom.