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Verhandlungen
DPG

Regensburg 2010 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 41: Poster Session I (Semiconductor Substrates: Epitaxy and growth; Semiconductor Substrates: Adsorbtion; Semiconductor Substrates: Solid-liquid interfaces; Semiconductor Substrates: Clean surfaces; Oxides and insulators: Epitaxy and growth; Oxides and insulators: Adsorption; Oxides and insulators: Clean surfaces; Organic, polymeric and biomolecular films - also with adsorbates; Organic electronics and photovoltaics, Surface chemical reactions; Heterogeneous catalysis; Phase transitions; Particles and clusters; Surface dynamics; Surface or interface magnetism; Electron and spin dynamics; Spin-Orbit Interaction at Surfaces; Electronic structure; Nanotribology; Solid/liquid interfaces; Graphene; Others)

O 41.57: Poster

Dienstag, 23. März 2010, 18:30–21:00, Poster B1

Deposition of Fe nanoparticles on thin Co(0001) films — •Volker Hückelkamp1, Wolfgang Rosellen1, Christian Kleinhans1, Furkan Bulut1,2, Joachim Bansmann2, Armin Kleibert3, and Mathias Getzlaff11Institute of Applied Physics, University of Düsseldorf, Germany — 2Department of Surface Chemistry, Ulm University, Germany — 3Swiss Light Source at the Paul Scherrer Institute, Villigen, Switzerland

In recent years, 3d-metal nanoparticles are characterised by increasing importance, especially because of their magnetic properties which significantly differ from bulk behaviour. In this contribution we focus on Fe nanoparticles being deposited on thin Co films which are prepared on a W(110) crystal and exhibit a thickness between 1 and 15 ML. These films are acting as supporting material for the nanoparticles and are characterised by Auger electron spectroscopy (AES), low energy electron diffraction (LEED) and scanning tunneling microscopy (STM). Mass filtered Fe nanoparticles with a diameter ranging from 3 nm to 15 nm are produced by a continuously working arc cluster ion source (ACIS) and deposited on thin Co(0001) films under UHV condition in order to avoid any influence due to oxidation and contamination. We will discuss their structural properties and correlate them with their magnetic behaviour investigated by X-ray magnetic circular dichroism (XMCD)[J.Bansmann, A.Kleibert, Appl. Phys. A 80, 957 (2005)].

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