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Title: | Dielectric anomaly and magnetic response of epitaxial orthorhombic YMnO3 thin films |
Author: | Martí, X. Skumryev, Vassil Hristov Laukhin, Vladimir Sánchez Barrera, Florencio García-Cuenca Varona, María Victoria Ferrater Martorell, Cèsar Varela Fernández, Manuel, 1956- Fontcuberta i Griñó, Josep |
Keywords: | Pel·lícules fines Òxids Propietats magnètiques Dielèctrics Thin films Oxides Magnetic properties Dielectrics |
Issue Date: | 2007 |
Publisher: | Materials Research Society |
Abstract: | The structure, magnetic response, and dielectric response of the grown epitaxial thin films of the orthorhombic phase of YMnO3 oxide on Nb:SrTiO3 (001) substrates have been measured. We have found that a substrate-induced strain produces an in-plane compression of the YMnO3 unit cell. The magnetization versus temperature curves display a significant zero-field cooling (ZFC)-field cooling hysteresis below the Nel temperature (TN 45 K). The dielectric constant increases gradually (up to 26%) below the TN and mimics the ZFC magnetization curve. We argue that these effects could be a manifestation of magnetoelectric coupling in YMnO3 thin films and that the magnetic structure of YMnO3 can be controlled by substrate selection and/or growth conditions. |
Note: | Reproducció del document original publicat a: http://dx.doi.org/10.1557/JMR.2007.0264 |
It is part of: | Journal of Materials Research, 2007, num. 22, núm. 8, p. 2096-2101 |
URI: | http://hdl.handle.net/2445/18209 |
Related resource: | http://dx.doi.org/10.1557/JMR.2007.0264 |
ISSN: | 0884-2914 |
Appears in Collections: | Articles publicats en revistes (Física Aplicada) |
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