Berlin 2012 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 58: Poster Session III (Solid/liquid interfaces; Metals; Semiconductors; Oxides and insulators)

O 58.58: Poster

Mittwoch, 28. März 2012, 18:15–21:45, Poster B

Growth and characterisation of Fe thin films on MgO(100) — •Hendrik Bettermann, Wolfgang Rosellen, Torsten Veltum, and Mathias Getzlaff — Institute of Applied Physics, University Duesseldorf

This investigation focuses on Fe films on commercially available MgO substrates. MgO as an insulating material is an interesting substrate for the deposition of thin films. It can provide a cost-efficient one-time alternative to W(110)-substrates.

One possible application for Fe films is the use of it as a supporting and magnetically conducting material for the deposition of magnetic nanoparticles consisting of Ni, Co, or alloys thereof. These are interesting from a technological point regarding data storage due to their size dependent electronic and magnetic properties.

The Fe thin films are investigated and characterised in-situ by LEED (low energy electron diffraction), AES (Auger electron spectroscopy), and STM (scanning tunneling microscopy). XRF (X-ray fluorescence spectroscopy) is also available to perform ex-situ investigations.

We focus on optimized parameters during deposition to produce flat films and wide terraces by variation of both film thickness and annealing temperature.