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Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys

First-order isostructural magnetoelastic transition with large magnetization difference and controllable thermal hysteresis are highly desirable in the development of high-performance magnetocaloric materials used for energy-efficient and environmental-friendly magnetic refrigeration. Here, we demon...

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Autores principales: Song, Zhao, Li, Zongbin, Yang, Bo, Yan, Haile, Esling, Claude, Zhao, Xiang, Zuo, Liang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8467650/
https://www.ncbi.nlm.nih.gov/pubmed/34576457
http://dx.doi.org/10.3390/ma14185233
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author Song, Zhao
Li, Zongbin
Yang, Bo
Yan, Haile
Esling, Claude
Zhao, Xiang
Zuo, Liang
author_facet Song, Zhao
Li, Zongbin
Yang, Bo
Yan, Haile
Esling, Claude
Zhao, Xiang
Zuo, Liang
author_sort Song, Zhao
collection PubMed
description First-order isostructural magnetoelastic transition with large magnetization difference and controllable thermal hysteresis are highly desirable in the development of high-performance magnetocaloric materials used for energy-efficient and environmental-friendly magnetic refrigeration. Here, we demonstrate large magnetocaloric effect covering the temperature range from 325 K to 245 K in Laves phase Hf(1−x)Ta(x)Fe(2) (x = 0.13, 0.14, 0.15, 0.16) alloys undergoing the magnetoelastic transition from antiferromagnetic (AFM) state to ferromagnetic (FM) state on decreasing the temperature. It is shown that with the increase of Ta content, the nature of AFM to FM transition is gradually changed from second-order to first-order. Based on the direct measurements, large reversible adiabatic temperature change (ΔT(ad)) values of 2.7 K and 3.4 K have been achieved under a low magnetic field change of 1.5 T in the Hf(0.85)Ta(0.15)Fe(2) and Hf(0.84)Ta(0.16)Fe(2) alloys with the first-order magnetoelastic transition, respectively. Such remarkable magnetocaloric response is attributed to the rather low thermal hysteresis upon the transition as these two alloys are close to intermediate composition point of second-order transition converting to first-order transition.
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spelling pubmed-84676502021-09-27 Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys Song, Zhao Li, Zongbin Yang, Bo Yan, Haile Esling, Claude Zhao, Xiang Zuo, Liang Materials (Basel) Article First-order isostructural magnetoelastic transition with large magnetization difference and controllable thermal hysteresis are highly desirable in the development of high-performance magnetocaloric materials used for energy-efficient and environmental-friendly magnetic refrigeration. Here, we demonstrate large magnetocaloric effect covering the temperature range from 325 K to 245 K in Laves phase Hf(1−x)Ta(x)Fe(2) (x = 0.13, 0.14, 0.15, 0.16) alloys undergoing the magnetoelastic transition from antiferromagnetic (AFM) state to ferromagnetic (FM) state on decreasing the temperature. It is shown that with the increase of Ta content, the nature of AFM to FM transition is gradually changed from second-order to first-order. Based on the direct measurements, large reversible adiabatic temperature change (ΔT(ad)) values of 2.7 K and 3.4 K have been achieved under a low magnetic field change of 1.5 T in the Hf(0.85)Ta(0.15)Fe(2) and Hf(0.84)Ta(0.16)Fe(2) alloys with the first-order magnetoelastic transition, respectively. Such remarkable magnetocaloric response is attributed to the rather low thermal hysteresis upon the transition as these two alloys are close to intermediate composition point of second-order transition converting to first-order transition. MDPI 2021-09-11 /pmc/articles/PMC8467650/ /pubmed/34576457 http://dx.doi.org/10.3390/ma14185233 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Song, Zhao
Li, Zongbin
Yang, Bo
Yan, Haile
Esling, Claude
Zhao, Xiang
Zuo, Liang
Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys
title Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys
title_full Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys
title_fullStr Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys
title_full_unstemmed Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys
title_short Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf(1−x)Ta(x)Fe(2) Alloys
title_sort large low-field reversible magnetocaloric effect in itinerant-electron hf(1−x)ta(x)fe(2) alloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8467650/
https://www.ncbi.nlm.nih.gov/pubmed/34576457
http://dx.doi.org/10.3390/ma14185233
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