Ferroelectric phase transition in strained multiferroic (Bi0.9La0.1)2NiMnO6 thin films
Author(s) -
Eric Langenberg,
Ignasi Fina,
P. Gemeiner,
Brahim Dkhil,
L. Fábrega,
M. Várela,
J. Fontcuberta
Publication year - 2012
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.3675869
Subject(s) - multiferroics , ferroelectricity , materials science , raman spectroscopy , condensed matter physics , thin film , polarization (electrochemistry) , ferromagnetism , phase transition , epitaxy , transition temperature , perovskite (structure) , oxide , crystallography , optoelectronics , nanotechnology , optics , chemistry , superconductivity , dielectric , physics , layer (electronics) , metallurgy
We report here temperature-dependent x-ray structural and Raman spectroscopy data, on the ferromagnetic double-perovskite (Bi0.9La0.1)2NiMnO6 epitaxial thin films. Results indicate a ferroelectric transition occurring at about 450 C. Low-temperature polarization loops allow to clearly observing polarization switching, thus confirming the multiferroic character of this oxide, and indicate a lower bound of about 6 lC/cm2
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