Influence of strain and oxygen vacancies on the magnetoelectric properties of multiferroic bismuth ferrite

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dc.creatorEderer, Claude
dc.creatorSpaldin, Nicola A.
dc.date2005-02-15
dc.date.accessioned2026-07-07T06:28:22Z
dc.date.available2026-07-07T06:28:22Z
dc.descriptionThe dependencies on strain and oxygen vacancies of the ferroelectric polarization and the weak ferromagnetic magnetization in the multiferroic material bismuth ferrite, BiFeO_3, are investigated using first principles density functional theory calculations. The electric polarization is found to be rather independent of strain, in striking contrast to most conventional perovskite ferroelectrics. It is also not significantly affected by oxygen vacancies, or by the combined presence of strain and oxygen vacancies. The magnetization is also unaffected by strain, however the incorporation of oxygen vacancies can alter the magnetization slightly, and also leads to the formation of Fe^{2+}. These results are discussed in light of recent experiments on epitaxial films of BiFeO_3 which reported a strong thickness dependence of both magnetization and polarization.
dc.description9 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0502364
dc.identifierhttp://arxiv.org/abs/cond-mat/0502364
dc.identifierPhys. Rev. B 71, 224103 (2005)
dc.identifierdoi:10.1103/PhysRevB.71.224103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97677
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.titleInfluence of strain and oxygen vacancies on the magnetoelectric properties of multiferroic bismuth ferrite
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