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Composition-driven structural phase transitions in rare-earth-doped bifeo3 ceramics: a review

Arnold, Donna C. (2015) Composition-driven structural phase transitions in rare-earth-doped bifeo3 ceramics: a review. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 62 (1). pp. 62-82. ISSN 0885-3010. E-ISSN 1525-8955. (doi:10.1109/TUFFC.2014.006668) (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)

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/10.1109/TUFFC.2014.006668

Abstract

Bismuth ferrite suffers from high leakage currents and the presence of a complex incommensurate spin cycloidal magnetic ordering, which has limited its commercial viability and has led researchers to investigate the functionality of doped BiFeO3 ceramics. In particular, the substitution of rare earths onto the Bi3+ site of the perovskite lattice have been shown to lead to improved functional properties, including lower leakage currents and the suppression of the magnetic spin cycloid. There is particular interest in materials with compositions close to structural morphotropic phase boundaries, because these may lead to materials with enhanced electronic and magnetic properties analogous to the highly relevant PbZrO3-PbTiO3 solid solution. However, many contradictory crystal structures and physical behaviors are reported within the literature. To understand the structure-property relationships in these materials, it is vital that we first unravel the complex structural phase diagrams. We report here a comprehensive review of structural phase transitions in rare-earth-doped bismuth ferrite ceramics across the entire lanthanide series. We attempt to rationalize the literature in terms of the perovskite tool kit and propose an updated phase diagram based on an interpretation of the literature.

Item Type: Article
DOI/Identification number: 10.1109/TUFFC.2014.006668
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Donna Arnold
Date Deposited: 20 Jan 2017 14:34 UTC
Last Modified: 29 May 2019 18:34 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/59964 (The current URI for this page, for reference purposes)
Arnold, Donna C.: https://orcid.org/0000-0003-0239-5790
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