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Investigations of the size distribution and magnetic properties of nanoparticles of Cu2OSeO3
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Holt, S. J. R., Štefančič, Aleš, Loudon, James, Lees, Martin R. and Balakrishnan, Geetha (2021) Investigations of the size distribution and magnetic properties of nanoparticles of Cu2OSeO3. Materials Research Express, 8 (11). 116101. doi:10.1088/2053-1591/ac3aa8
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WRAP-investigations-size-distribution- magnetic-properties-nanoparticles-Cu2OSeO3-2021.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1339Kb) | Preview |
Official URL: https://doi.org/10.1016/j.trgeo.2021.100705
Abstract
Abstract Skyrmions in confined geometries have been a subject of increasing interest due to the different properties that they exhibit compared to their bulk counterparts. In this study, nanoparticles of skyrmion-hosting Cu2OSeO3 have been synthesised using a precipitation method followed by thermal treatment. This enables us to produce nanoparticles whose mean size varies from tens of nanometers to a few micrometers by varying the temperature and duration of the thermal decomposition of the precursor. These sizes span the ∼ 63 nm diameter of skyrmions in Cu2OSeO3, allowing investigations into how the magnetic state changes when the size of the geometrical confinement is similar to and smaller than the size of an isolated magnetic skyrmion. AC susceptibility measurements performed on nanoparticles with a size distribution from 15 to 250 nm show a change in the magnetic phase diagram compared to bulk Cu2OSeO3.
| Item Type: | Journal Article | ||||||
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| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Library of Congress Subject Headings (LCSH): | Skyrme model, Nanoparticles -- Magnetic properties, Magnetic materials | ||||||
| Journal or Publication Title: | Materials Research Express | ||||||
| Publisher: | IOP Publishing | ||||||
| ISSN: | 2053-1591 | ||||||
| Official Date: | 26 November 2021 | ||||||
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| Volume: | 8 | ||||||
| Number: | 11 | ||||||
| Article Number: | 116101 | ||||||
| DOI: | 10.1088/2053-1591/ac3aa8 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access | ||||||
| RIOXX Funder/Project Grant: |
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