Euan A.S. Scott
Bi2CoO2F4 – a polar, ferrimagnetic Aurivillius oxide-fluoride
Scott, Euan A.S.; Mitoudi Vagourdei, Eleni; Johnsson, Mats; Cascos, Vanessa; John, Filbin; Pickup, Dave; Chadwick, Alan V.; Djani, Hania; Bousquet, Eric; Zhang, Weiguo; Halasyamani, P. Shiv; McCabe, Emma
Authors
Eleni Mitoudi Vagourdei
Mats Johnsson
Vanessa Cascos
Filbin John
Dave Pickup
Alan V. Chadwick
Hania Djani
Eric Bousquet
Weiguo Zhang
P. Shiv Halasyamani
Dr Emma McCabe emma.mccabe@durham.ac.uk
Associate Professor
Abstract
Aurivillius oxides have been a research focus due to their ferroelectric properties, but by replacing oxide ions by fluoride, divalent magnetic cations can be introduced, giving Bi2MO2F4 (M = Fe, Co, and Ni). Our combined experimental and computational study on Bi2CoO2F4 indicates a low-temperature polar structure of P21ab symmetry (analogous to ferroelectric Bi2WO6) and a ferrimagnetic ground state. These results highlight the potential of Aurivillius oxide-fluorides for multiferroic properties. Our research has also revealed some challenges associated with the reduced tendency for polar displacements in the more ionic fluoride-based systems.
Citation
Scott, E. A., Mitoudi Vagourdei, E., Johnsson, M., Cascos, V., John, F., Pickup, D., …McCabe, E. (2022). Bi2CoO2F4 – a polar, ferrimagnetic Aurivillius oxide-fluoride. Chemistry of Materials, 34(21), 9775-9785. https://doi.org/10.1021/acs.chemmater.2c02745
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 3, 2022 |
Publication Date | 2022 |
Deposit Date | Oct 6, 2022 |
Publicly Available Date | Nov 21, 2022 |
Journal | Chemistry of Materials |
Print ISSN | 0897-4756 |
Electronic ISSN | 1520-5002 |
Publisher | American Chemical Society |
Peer Reviewed | Peer Reviewed |
Volume | 34 |
Issue | 21 |
Pages | 9775-9785 |
DOI | https://doi.org/10.1021/acs.chemmater.2c02745 |
Public URL | https://durham-repository.worktribe.com/output/1192363 |
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