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Ferroelectric-Paraelectric Transition in BiFeO3: Crystal Structure of the Orthorhombic ß Phase

Arnold, Donna C., Knight, Kevin S., Morrison, Finlay D., Lightfoot, Philip (2009) Ferroelectric-Paraelectric Transition in BiFeO3: Crystal Structure of the Orthorhombic ß Phase. Physical Review Letters, 102 (2). 027602. ISSN 0031-9007. (doi:10.1103/PhysRevLett.102.027602) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:40383)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1103/PhysRevLett.102.027602

Abstract

A detailed investigation using variable temperature powder neutron diffraction demonstrates that BiFeO3 undergoes a phase transition from the ferroelectric ? phase (rhombohedral, R3c) to a paraelectric ? phase (orthorhombic, Pbnm) between 820?°C and 830?°C. Coexistence of both phases over a finite temperature interval, together with abrupt changes in key structural parameters, confirms that the transition is first order. The ? phase corresponds to a GdFeO3-type perovskite structure.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevLett.102.027602
Additional information: article number: 027602;
Subjects: Q Science > QC Physics
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Stewart Brownrigg
Date Deposited: 07 Mar 2014 00:05 UTC
Last Modified: 29 May 2019 12:24 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/40383 (The current URI for this page, for reference purposes)
Arnold, Donna C.: https://orcid.org/0000-0003-0239-5790
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