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Perovskite solid solutions with multiferroic morphotropic phase boundaries and property enhancement

AutorAlgueró, Miguel ; Amorín, Harvey; Fernández-Posada, Carmen M.; Peña, Octavio; Ramos, Pablo ; Vila Pena, Eladio ; Castro, Alicia
Palabras claveMagnetoelectrics
Ceramic technologies
Morphotrophic phase boundary
Perovskite solid solutions
Fecha de publicación2016
EditorWorld Scientific Publishing
CitaciónJournal of Advanced Dielectrics 6(2): 1630004 (2016)
ResumenRecently, large phase-change magnetoelectric response has been anticipated by a first-principles investigation of phases in the BiFeO-BiCoO perovskite binary system, associated with the existence of a discontinuous morphotropic phase boundary (MPB) between multiferroic polymorphs of rhombohedral and tetragonal symmetries. This might be a general property of multiferroic phase instabilities, and a novel promising approach for room temperature magnetoelectricity. We review here our current investigations on the identification and study of additional material systems, alternative to BiFeO-BiCoO that has only been obtained by high pressure synthesis. Three systems, whose phase diagrams were, in principle, liable to show multiferroic MPBs have been addressed: the BiMnO-PbTiO and BiFeO-PbTiO binary systems, and the BiFeO-BiMnO-PbTiO ternary one. A comprehensive study of multiferroism across different solid solutions was carried out based on electrical and magnetic characterizations, complemented with mechanical and electromechanical measurements. An in-depth structural analysis was also accomplished when necessary.
DescripciónThis is an Open Access article published by World Scientific Publishing Company.-- Review.
Versión del editorhttp://dx.doi.org/10.1142/S2010135X16300048
Identificadoresdoi: 10.1142/S2010135X16300048
issn: 2010-135X
e-issn: 2010-1368
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