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Spin interactions and magnetic order in the iron oxychalcogenides BaFe2Q2O(Q=Sand Se)

Coles, B. D, Hillier, A. D., Coomer, F. C., Bristowe, Nicholas C., Ramos, Silvia, McCabe, E. E. (2019) Spin interactions and magnetic order in the iron oxychalcogenides BaFe2Q2O(Q=Sand Se). Physical Review B, 100 (2). 024427. ISSN 2469-9950. (doi:10.1103/PhysRevB.100.024427)

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Abstract

The ability to tune the iron chalcogenides BaFe2Q3 from Mott insulators to metals and then superconductors with applied pressure has renewed interest in low-dimensional iron chalcogenides and oxychalcogenides. We report here a combined experimental and theoretical study on the iron oxychalcogenides BaFe2Q2O (Q = S, Se) and show that their magnetic behavior results from nearest-neighbor magnetic exchange interactions via oxide and selenide anions of similar strength, with properties consistent with more localized electronic structures than those of BaFe2Q3 systems.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevB.100.024427
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Emma McCabe
Date Deposited: 26 Jul 2019 09:08 UTC
Last Modified: 13 Nov 2019 15:46 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/75554 (The current URI for this page, for reference purposes)
Bristowe, Nicholas C.: https://orcid.org/0000-0003-1286-8440
Ramos, Silvia: https://orcid.org/0000-0003-2725-7706
McCabe, E. E.: https://orcid.org/0000-0001-5868-4570
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