Nedelkoski, Zlatko, Kepaptsoglou, Demie orcid.org/0000-0003-0499-0470, Lari, Leonardo orcid.org/0000-0002-1446-2877 et al. (8 more authors) (2017) Origin of reduced magnetization and domain formation in small magnetite nanoparticles. Scientific Reports. 45997. ISSN 2045-2322
Abstract
The structural, chemical, and magnetic properties of magnetite nanoparticles are compared. Aberration corrected scanning transmission electron microscopy reveals the prevalence of antiphase boundaries in nanoparticles that have significantly reduced magnetization, relative to the bulk. Atomistic magnetic modelling of nanoparticles with and without these defects reveals the origin of the reduced moment. Strong antiferromagnetic interactions across antiphase boundaries support multiple magnetic domains even in particles as small as 12-14 nm.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2017. |
Keywords: | Journal Article |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 26 Apr 2017 12:00 |
Last Modified: | 02 Apr 2025 23:10 |
Published Version: | https://doi.org/10.1038/srep45997 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1038/srep45997 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:115680 |
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Filename: srep45997.pdf
Description: Origin of reduced magnetization and domain formation in small magnetite nanoparticles
Licence: CC-BY 2.5