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Institut f. Physik
FG Nanostrukturierte Materialien
Martin-Luther-Universitat
Halle-Wittenberg
Von-Danckelmann-Platz 3,
D-06120 Halle, Germany

Tel.:  +49 345 55 25321
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[Veröffentlichungen] [Patente] [Graduierungsarbeiten] [Berichte] [Poster]
Abstract

Nico Homonnay, Kerry J. O'shea, Christian Eisenschmidt, Martin Wahler, Donald A. MacLaren, and Georg Schmidt
Interface Reactions in LSMO-Metal Hybrid Structures
ACS Applied Materials and Interfaces 7/40 (2017-04-14 13:04:58), 22196
DOI: 10.1021/acsami.5b04465


Perovskites form a class of promising materials for the development of multifunctional devices but require reliable strategies for forming electrical contacts without compromising functionality. We explore the interactions of a range of metal contacts with ferromagnetic oxide La0.7Sr0.3MnO3 (LSMO) and discuss their impact on the magnetic, structural, and chemical properties of the oxide. Although the noble metals gold and silver have negligible impact, metals typically used as adhesion layers, such as titanium and chromium, drive substantial reduction of the oxide, impairing its performance. These effects can be suppressed by inserting a thin barrier layer, such as the conductive oxide SrRuO3.

http://pubs.acs.org/doi/10.1021/acsami.5b04465
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