Exchange bias between magnetoelectric YMnO3 and ferromagnetic SrRuO3 epitaxial films

Orthorhombic YMnO3 (YMO) epitaxial thin films were deposited on SrTiO3 (STO) single-crystal substrates. We show that the out-of-plane texture of the YMO films can be tailored using STO substrates having (001), (110), or (111) orientations. We report on the magnetic properties of the YMO(010) films g...

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Bibliographic Details
Published in:Journal of applied physics 2006-04, Vol.99 (8)
Main Authors: Martí, X., Sánchez, F., Fontcuberta, J., García-Cuenca, M. V., Ferrater, C., Varela, M.
Format: Article
Language:English
Subjects:
Condensed matter
Espintrònica
Lasers
Làsers
Magnetic properties
Matèria condensada
Pel·lícules fines
Propietats magnètiques
Spintronics
Thin films
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Summary:Orthorhombic YMnO3 (YMO) epitaxial thin films were deposited on SrTiO3 (STO) single-crystal substrates. We show that the out-of-plane texture of the YMO films can be tailored using STO substrates having (001), (110), or (111) orientations. We report on the magnetic properties of the YMO(010) films grown on STO(001) substrates. The dependence of the susceptibility on the temperature indicates that the films are antiferromagnetic below the Néel temperature (around 35 K). Orthorhombic YMO(010) films were also deposited on an epitaxial buffer layer of ferromagnetic and metallic SrRuO3 (SRO). The magnetic hysteresis loops of SRO show exchange bias at temperatures below the Néel temperature of YMO. These results confirm that the YMO films are antiferromagnetic and demonstrate that magnetoelectric YMO can be integrated in functional epitaxial architectures.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2167333