WENDLING, Laurianne; HENNING, Xavier; ROULLAND, François; LENERTZ, Marc; VERSINI, Giles; SCHLUR, Laurent; CHUNG, U-Chan; DINIA, Aziz; COLIS, Silviu; RASTEI, Mircea

doi:10.1016/j.tsf.2022.139384

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WENDLING, Laurianne
Institut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]

HENNING, Xavier
Institut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]

ROULLAND, François
Institut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]

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Article de revue

Este ítem está publicado en

Thin Solid Films. 2022-09, vol. 757, p. 139384 (6 p.)

Elsevier

Resumen en inglés

Ferroelectric Bi 2 FeCrO 6 (BFCO) double perovskite thin films were grown by pulsed laser deposition on SrTiO 3 (111) covered with a 20 nm thick La 2/3 Sr 1/3 MnO 3 buffer layer. X-ray diffraction measurements performed in θ-2θ and φ scans modes reveal an epitaxial growth of the BFCO with a compressive inplane strained structure and no spurious phases. The presence of superstructure diffraction peaks indicates an Fe-Cr cationic ordering along the growth axis. Local measurements realized by piezoresponse force microscopy show an asymmetric polarization switching with respect to the external bias voltage suggesting the presence of a bias field. This agrees with a preferential ferroelectric polarization observed upon local poling of the BFCO film in opposite directions. The findings can be of importance for understanding the relationship between the atomic structure and polarization dynamics in ferroelectric thin-films.< Leer menos

Palabras clave en inglés

Ferroelectricity

Bias Field

Strain

Switching Field

Polarization

Bismuth iron chromium oxide

DOI

http://dx.doi.org/10.1016/j.tsf.2022.139384

Proyecto ANR

Quantum Science and Nanomaterials - ANR-17-EURE-0024
Nanostructures en Interaction avec leur Environnement - ANR-11-LABX-0058

Orígen

Importado de Hal

Centros de investigación

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026