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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). Article Number 024427. ISSN 2469-9950. (doi:10.1103/PhysRevB.100.024427) (KAR id:75554)

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https://doi.org/10.1103/PhysRevB.100.024427

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: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Emma McCabe
Date Deposited: 26 Jul 2019 09:08 UTC
Last Modified: 09 Dec 2022 05:42 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/75554 (The current URI for this page, for reference purposes)

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