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Title: Multiferroism in orientational engineered (La, Mn) co-substituted BiFeO₃ thin films
Authors: Wang, DY
Chan, NY
Zheng, RK
Kong, C
Lin, D
Dai, J 
Chan, HLW 
Li, S
Issue Date: 1-Jun-2011
Source: Journal of applied physics, 1 June 2011, v. 109, no. 11, 114105, p. 1-6
Abstract: Orientational engineered (La, Mn) co-substituted BiFeO₃ (LMBFO) thin films were epitaxially grown on CaRuO₃ electroded (LaAlO₃)₀.₃(Sr₂AlTaO₆)₀.₃₅ (LSAT) single crystal substrates by pulsed laser deposition. The experimental results demonstrate that the crystallographic orientation is the critical dominant of the structural and multiferroic properties of LMBFO thin films. Giant remanent polarization of 65, 92, and 106 µC/cm² for [001], [110], [111]-oriented films, respectively, were demonstrated at room temperature. Saturated magnetization is also significantly dependent on film orientation with the highest value of 12.8 emu/cm³ along [001] direction. The variation in leakage current density and ferroelectric coercivity were ascribed to the substantially difference of ferroelectric domain structures in variously oriented LMBFO thin films.
Keywords: Ferroelectric materials
Ferroelectricity
Lanthanum
Manganese
Pulsed laser deposition
Single crystals
Thin films
Vapor deposition
Publisher: American Institute of Physics
Journal: Journal of applied physics 
ISSN: 0021-8979
EISSN: 1089-7550
DOI: 10.1063/1.3594745
Rights: © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in D.Y. Wang et al., J. Appl. Phys. 109, 114105 (2011) and may be found at http://jap.aip.org/resource/1/japiau/v109/i11/p114105_s1.
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