Barker, J orcid.org/0000-0003-4843-5516, Pashov, D and Jackson, J (2020) Electronic structure and finite temperature magnetism of yttrium iron garnet. Electronic Structure, 2. 044002. ISSN 2516-1075
Abstract
Yttrium iron garnet is a complex ferrimagnetic insulator with 20 magnon modes which is used extensively in fundamental experimental studies of magnetisation dynamics. As a transition metal oxide with moderate gap (2.8 eV), yttrium iron garnet requires a careful treatment of electronic correlation. We have applied quasiparticle self-consistent GW to provide a fully ab initio description of the electronic structure and resulting magnetic properties, including the parameterisation of a Heisenberg model for magnetic exchange interactions. Subsequent spin dynamical modelling with quantum statistics extends our description to the magnon spectrum and thermodynamic properties such as the Curie temperature, finding favourable agreement with experimental measurements. This work provides a snapshot of the state-of-the art in modelling of complex magnetic insulators.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article published in Electronic Structure. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/2516-1075/abd097. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) |
Funding Information: | Funder Grant number Royal Society URF\R1\180333 |
Depositing User: | Symplectic Publications |
Date Deposited: | 01 Dec 2020 12:57 |
Last Modified: | 17 Dec 2021 01:38 |
Status: | Published |
Publisher: | IOP Publishing |
Identification Number: | 10.1088/2516-1075/abd097 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:168564 |