Skip to main content

Research Repository

Advanced Search

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

Bi2CoO2F4 – a polar, ferrimagnetic Aurivillius oxide-fluoride Thumbnail


Authors

Euan A.S. Scott

Eleni Mitoudi Vagourdei

Mats Johnsson

Vanessa Cascos

Filbin John

Dave Pickup

Alan V. Chadwick

Hania Djani

Eric Bousquet

Weiguo Zhang

P. Shiv Halasyamani



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

Files


Published Journal Article (8 Mb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Attribution 4.0 International (CC BY 4.0)
You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material for any purpose, even commercially. This license is acceptable for Free Cultural Works. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.





You might also like



Downloadable Citations