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dc.contributor.authorKavanagh, Christopher Matthew
dc.contributor.authorGoff, Richard John
dc.contributor.authorDaoud-Aladine, Aziz
dc.contributor.authorLightfoot, Philip
dc.contributor.authorMorrison, Finlay D.
dc.identifier.citationKavanagh , C M , Goff , R J , Daoud-Aladine , A , Lightfoot , P & Morrison , F D 2012 , ' Magnetically driven dielectric and structural behavior in Bi 0.5 La 0.5 FeO 3 ' , Chemistry of Materials , vol. 24 , no. 23 , pp. 4563-4571 .
dc.identifier.otherPURE: 42812282
dc.identifier.otherPURE UUID: 3a467232-18d4-4b0e-9003-756200992a44
dc.identifier.otherWOS: 000312122400010
dc.identifier.otherScopus: 84870948693
dc.identifier.otherORCID: /0000-0002-2813-3142/work/48131869
dc.identifier.otherORCID: /0000-0001-7048-3982/work/59464478
dc.descriptionThe authors would like to thank the Royal Society for a University Research Fellowship (FDM), Engineering and Physical Sciences Research Council for a studentship (CMK), and the Science and Technology Facilities Council for access to neutron facilities.en
dc.description.abstractA detailed structural analysis of the antiferromagnetic (Gz-type) lanthanum doped bismuth ferrite - Bi0.5La0.5FeO3 (Pn′ma′) – using variable-temperature powder neutron diffraction is reported. The analysis highlights a structural link between changes in the relative dielectric permittivity and changes in the FeO6 octahedral tilt magnitudes, accompanied by a structural distortion of the octahedra with corresponding A-site displacement along the c-axis; this behavior is unusual due to an increasing in-phase tilt mode with increasing temperature. The anomalous orthorhombic distortion is driven by magnetostriction at the onset of antiferromagnetic ordering resulting in an Invar effect along the magnetic c-axis and anisotropic displacement of the A-site Bi3+ and La3+ along the a-axis.
dc.relation.ispartofChemistry of Materialsen
dc.rightsCopyright © 2012 American Chemical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectOctahedral tilten
dc.subjectA-site displacementen
dc.subjectQD Chemistryen
dc.titleMagnetically driven dielectric and structural behavior in Bi0.5La0.5FeO3en
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.description.statusPeer revieweden

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