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Berlin 2012 – scientific programme

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O: Fachverband Oberflächenphysik

O 91: [MA] Poster II

O 91.23: Poster

Friday, March 30, 2012, 11:00–14:00, Poster A

Hall effect studies in ultrathin LSMO/SRO superlattices — •Francis Bern1, Michael Ziese1, and Ionela Vrejoiu21Division of Superconductivity and Magnetism, University of Leipzig, 04103 Leipzig, Germany — 2Max Planck Institute of Microstructure Physics, 06120 Halle, Germany

A variety of ultrathin multilayer films have been produced by pulsed laser deposition. The itinerant ferromagnet SrRuO3 (SRO) and the double-exchange ferromagnet La0.7Sr0.3MnO3 (LSMO) were grown on SrTiO3 (STO), both in single layers as well as in superlattices. Characterization by magnetotransport measurements indicate a structural transition due to strain in the ultrathin layers. The complex temperature dependence of the anomalous Hall coefficient suggests changes in the electronic structure and/or a conducting interfacial layer at the LSMO/SRO interface.

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