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High-temperature phases of multiferroic BiFe0.7Mn0.3O3

Gibbs, A.S., Arnold, Donna C., Knight, K.S., Lightfoot, P. (2013) High-temperature phases of multiferroic BiFe0.7Mn0.3O3. Physical Review B - Condensed Matter and Materials Physics, 87 (22). p. 224109. ISSN 1098-0121. (doi:10.1103/PhysRevB.87.224109) (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)

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Official URL
http://dx.doi.org/10.1103/PhysRevB.87.224109

Abstract

We report the results of a high-resolution powder neutron-diffraction study of multiferroic BiFe0.7Mn0.3O3. We have confirmed the previous assignment of the ? phase and ? phase as having R3c and Pbnm symmetry, respectively. The ? phase, however, has been shown unequivocally not to be cubic, as previously reported, but rather to retain octahedral tilting distortions leading to a lower symmetry, most likely rhombohedral with space group R3Cc The ? phase of BiFe 0.7Mn0.3O3 is therefore different than that of the parent compound BiFeO3, which retains an orthorhombic structure up to its decomposition temperature. The lattice parameters of the ? phase of BiFe0.7Mn0.3O3 are pseudocubic throughout its entire stability range, despite the fact that there are still significant distortions from the cubic aristotype structure even at the onset of decomposition.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevB.87.224109
Additional information: Unmapped bibliographic data: C7 - 224109 [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - Phys. Rev. B Condens. Matter Mater. Phys. [Field not mapped to EPrints] AD - School of Chemistry, EaStCHEM, University of St Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom [Field not mapped to EPrints] AD - Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom [Field not mapped to EPrints] AD - School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NH, United Kingdom [Field not mapped to EPrints] AD - ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 OQX, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Subjects: Q Science > QC Physics > QC176 Solid state physics
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 07 Jul 2015 10:50 UTC
Last Modified: 29 May 2019 14:43 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49058 (The current URI for this page, for reference purposes)
Arnold, Donna C.: https://orcid.org/0000-0003-0239-5790
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