Regensburg 2013 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 27: Thin Film Characterization: Structure Analysis and Composition (XRD, TEM, XPS, SIMS, RBS,...) I

DS 27.9: Vortrag

Mittwoch, 13. März 2013, 19:15–19:30, H32

Depth dependent influence of thin Fe layers on the magnetic properties of Pd in Pd/Fe multilayers — •Paul Zakalek, Markus Schmitz, Ulrich Rücker, and Thomas Brückel — Jülich Centre for Neutron Science JCNS und Peter Grünberg Institut PGI, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany

Proximity effects in magnetic multilayers give rise to new physical properties which are interesting for new spintronic devices. Because of a high Stoner parameter of 0.78, Pd almost fulfills the Stoner-criterion for ferromagnetism and makes this material especially interesting. Due to hybridization with a magnetic material like Fe it is possible to induce a magnetic moment into the Pd layer.

Therefore we investigated Pd/Fe multilayers with sharp defined interfaces (layer roughnesses of less then 8 Å) with SQUID magnetometry, X-ray and polarized neutron reflectrometry measurements. The SQUID measurements could indicate an existing induced magnetic moment of Pd, which was not possible to resolve with polarized neutron reflectrometry measurements.

We will present the preparation and characterization of the Pd/Fe multilayers.