Journal
SCRIPTA MATERIALIA
Volume 62, Issue 5, Pages 238-241Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.11.005
Keywords
Ferroelectricity; Magnetic properties; Phase transformations
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Funding
- Foundation for Science and Technology of Portugal (FCT)
- Deutsche Forschungsgemeinschaft (DFG) [SFB 491]
- EC [NMP3-CT-2006-032616]
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Investigation of crystal structure and multiferroic properties of polycrystalline Bi1-xSmxFeO3 (0-1 <= x <= 0.2) samples was performed by X-ray diffraction, piezoresponse force microscopy and SQUID-magnetometry techniques. It was shown that increasing samarium content induced a polar-to-nonpolar phase transition near x = 0.2. Within the polar region, a rhombohedral and two orthorhombic modifications of Bi1-xSmxFeO3 were found. It was shown that samarium substitution resulted in the appearance of spontaneous magnetization, which was significantly enhanced upon the composition-driven transition from a rhombohedral to an orthorhombic phase. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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