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Structural study of bismuth ferrite \(BiFeO_3\) by neutron total scattering and the reverse Monte Carlo method

Du, Juan, Phillips, Anthony E., Arnold, Donna C., Keen, David A., Tucker, Matthew G., Dove, Martin T. (2019) Structural study of bismuth ferrite \(BiFeO_3\) by neutron total scattering and the reverse Monte Carlo method. Physical Review B, 100 (10). Article Number 104111. ISSN 2469-9950. (doi:10.1103/PhysRevB.100.104111) (KAR id:77584)

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We report a study of the atomic structure of the multiferroic material bismuth ferrite \(BiFeO_3\) using neutron total scattering measurements coupled with analysis using the Reverse Monte Carlo method. We have examined average neighboring interatomic distances and local coordination environments, together with their fluctuations, for temperatures between 16 and 800 K (the sample decomposed at higher temperatures). There is little change in the average structure as a function of temperature, but the results show unusually large thermal motion at higher temperatures. No anomalous behavior is seen within this range, suggesting that the anomalies reported to occur below room temperature most likely arise due to effects associated with surfaces and interfaces.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevB.100.104111
Uncontrolled keywords: Crystal structure, Ferroelectricity, Phase transitions, Ferrites, Multiferroics, Monte Carlo methods, Neutron diffraction
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Donna Arnold
Date Deposited: 18 Oct 2019 11:49 UTC
Last Modified: 16 Feb 2021 14:08 UTC
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