Skip to main content

The magnetocaloric effect of the lanthanide fluorides: Using polarized neutron scattering to probe a magnetocaloric suitable for hydrogen liquefaction

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)

PDF Publisher pdf
Language: English


Click to download this file (7MB) Preview
[thumbnail of The Magnetocaloric Effect_Saines_PDF.pdf]
Preview
This file may not be suitable for users of assistive technology.
Request an accessible format
PDF Author's Accepted Manuscript
Language: English
Click to download this file (1MB) Preview
[thumbnail of The Magnetocaloric Effect_Saines_AAM_pdf.pdf]
Preview
This file may not be suitable for users of assistive technology.
Request an accessible format
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
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: 25 Aug 2023 13:56 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/101044 (The current URI for this page, for reference purposes)
Dixey, Richard J. C.: https://orcid.org/0000-0003-4216-0136
Wildes, Andrew: https://orcid.org/0000-0003-3957-2818
Doheny, Patrick W.: https://orcid.org/0000-0003-1705-8850
Saines, Paul J.: https://orcid.org/0000-0002-4207-2112
  • Depositors only (login required):

Total unique views for this document in KAR since July 2020. For more details click on the image.