TY - JOUR
T1 - Dielectric anomaly and magnetic response of epitaxial orthorhombic YMnO3 thin films
AU - Martí, X.
AU - Skumryev, V.
AU - Laukhin, V.
AU - Sánchez, F.
AU - García-Cuenca, M. V.
AU - Ferrater, C.
AU - Varela, M.
AU - Fontcuberta, J.
PY - 2007/8/1
Y1 - 2007/8/1
N2 - 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 Néel 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. © 2007 Materials Research Society.
AB - 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 Néel 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. © 2007 Materials Research Society.
U2 - https://doi.org/10.1557/jmr.2007.0264
DO - https://doi.org/10.1557/jmr.2007.0264
M3 - Article
VL - 22
SP - 2096
EP - 2101
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
ER -