Structural properties and polarization switching of epitaxial Bi2FeCrO6 thin films grown on La2/3Sr1/3MnO3/SrTiO3 (111) substrates

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چکیده

Ferroelectric Bi2FeCrO6 (BFCO) double perovskite thin films were grown by pulsed laser deposition on SrTiO3 (111) covered with a 20 nm thick La2/3Sr1/3MnO3 buffer layer. X-ray diffraction measurements performed in θ-2θ and φ scans modes reveal an epitaxial growth of the BFCO compressive in-plane strained structure no spurious phases. The presence superstructure peaks indicates Fe-Cr cationic ordering along axis. Local realized piezo-response force microscopy show asymmetric polarization switching respect to external bias voltage suggesting field. This agrees preferential ferroelectric observed upon local poling film opposite directions. findings can be importance for understanding relationship between atomic dynamics thin-films.

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ژورنال

عنوان ژورنال: Thin Solid Films

سال: 2022

ISSN: ['1879-2731', '0040-6090']

DOI: https://doi.org/10.1016/j.tsf.2022.139384