Oogarah, R. K., Suard, Emmanuelle, McCabe, E. E. (2017) Magnetic order and phase transition in the iron oxysulfide La2O2Fe2OS2. Journal of Magnetism and Magnetic Materials, 446 . pp. 101-107. ISSN 0304-8853. (doi:10.1016/j.jmmm.2017.09.024) (KAR id:63360)
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| Official URL: https://doi.org/10.1016/j.jmmm.2017.09.024 |
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Abstract
The Mott-insulating iron oxychalcogenides exhibit complex magnetic behaviour and we report here a neutron diffraction investigation into the magnetic ordering in La2O2Fe2OS2. This quaternary oxysulfide adopts the anti-Sr2MnO2Mn2Sb2-type structure (described by space group I4/mmm) and orders antiferromagnetically below TN = 105 K. We consider both its long-range magnetic structure and its magnetic microstructure, and the onset of magnetic order. It adopts the multi-k vector “2k” magnetic structure (k = (½ 0 ½) and k = (0 ½ ½) and has similarities with related iron oxychalcogenides, illustrating the robust nature of the “2k” magnetic structure.
| Item Type: | Article |
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| DOI/Identification number: | 10.1016/j.jmmm.2017.09.024 |
| Uncontrolled keywords: | Iron oxychalcogenides; Magnetic structure; Neutron diffraction; Magnetic phase transition |
| Subjects: | Q Science |
| Institutional Unit: | Schools > School of Engineering, Mathematics and Physics > Physics and Astronomy |
| Former Institutional Unit: |
Divisions > Division of Natural Sciences > Physics and Astronomy
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| Depositing User: | Emma McCabe |
| Date Deposited: | 11 Sep 2017 09:21 UTC |
| Last Modified: | 20 May 2025 09:43 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/63360 (The current URI for this page, for reference purposes) |
University of Kent Author Information
McCabe, E. E..
| Creator's ORCID: |
 https://orcid.org/0000-0001-5868-4570
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