Dixey, Richard J. C., Wildes, Andrew, Doheny, Patrick W., Stenning, Gavin B. G., Saines, Paul J. (2023) The magnetocaloric effect of the lanthanide fluorides: Using polarized neutron scattering to probe a magnetocaloric suitable for hydrogen liquefaction. APL Materials, 11 (4). Article Number 041126. ISSN 2166-532X. (doi:10.1063/5.0139726) (KAR id:101044)
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Official URL: https://doi.org/10.1063/5.0139726 |
Abstract
This work reports the competitive magnetocaloric effect of some simple lanthanide fluoride materials with cations with high magnetic anisotropy. Of these, HoF3 is particularly promising due to exhibiting a high magnetocaloric entropy change under modest applied fields at higher temperatures, which only decreases modestly with temperature such that it has the potential for cooling for hydrogen liquefaction. Spin-polarized neutron spectroscopy indicates that its promising conventional magnetocaloric effect is likely due to the presence of ferromagnetic fluctuations of highly anisotropic magnetic moments, while its singlet electronic ground state and low-temperature magnetic ordering lead to a decrease in its magnetocaloric performance below 4 K.
Item Type: | Article |
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DOI/Identification number: | 10.1063/5.0139726 |
Additional information: | For the purpose of open access, the author has applied a CC BY public copyright licence (where permitted by UKRI, an Open Government Licence or CC BY ND public copyright licence may be used instead) to any Author Accepted Manuscript version arising. |
Uncontrolled keywords: | General Engineering, General Materials Science |
Subjects: | Q Science |
Divisions: |
Divisions > Division of Natural Sciences > Biosciences Divisions > Division of Natural Sciences > Chemistry and Forensics |
Funders: | Engineering and Physical Sciences Research Council (https://ror.org/0439y7842) |
Depositing User: | Paul Saines |
Date Deposited: | 26 Apr 2023 10:01 UTC |
Last Modified: | 05 Nov 2024 13:06 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/101044 (The current URI for this page, for reference purposes) |
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