A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3
Abstract Rare earth‐based perovskites have become an attractive research interest in the field of cryogenic magnetic refrigerants due to their unique advantages in practical applications. The remarkable magnetocaloric effect (MCE) renders EuTiO3 a potential magnetic refrigerant in the liquid helium...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2024-11-01
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| Series: | Advanced Electronic Materials |
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| Online Access: | https://doi.org/10.1002/aelm.202400176 |
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| author | Huicai Xie Jiaxin Jiang Lu Tian Zhaojun Mo Guodong Liu Xinqiang Gao Jun Shen Yao Liu |
| author_facet | Huicai Xie Jiaxin Jiang Lu Tian Zhaojun Mo Guodong Liu Xinqiang Gao Jun Shen Yao Liu |
| author_sort | Huicai Xie |
| collection | DOAJ |
| description | Abstract Rare earth‐based perovskites have become an attractive research interest in the field of cryogenic magnetic refrigerants due to their unique advantages in practical applications. The remarkable magnetocaloric effect (MCE) renders EuTiO3 a potential magnetic refrigerant in the liquid helium temperature range. More impressively, the tunability between antiferromagnetism (AFM) and ferromagnetism (FM) provides the feasibility of tailoring the magnetism and enhancing the magnetocaloric performance. In this study, the magnetism of EuTi0.75Al0.125Zr0.125O3 is investigated in depth through first‐principles calculations and experimental methods. Both theoretical calculations and experimental results reveal that it exhibits significant ferromagnetism due to the AFM‐FM magnetic transition promoted by the co‐substitution of Al and Zr. Lattice expansion and altered electronic interactions are responsible for the FM behavior, which leads to a significant enhancement of the MCE. With the field change of 0−1 T, the peak values of magnetic entropy change (−ΔSM), refrigerating capacity (RC), and adiabatic temperature change (ΔTad) reach 18.9 J kg−1 K−1, 77.7 J kg−1, and 7.4 K, respectively. More surprisingly, the values of maximum magnetic entropy change (−ΔSMmax) and maximum adiabatic temperature change ΔTadmax for EuTi0.75Al0.125Zr0.125O3 reach 11.4 J kg−1 K−1 and 3.7 K under the field change of 0−0.5 T, respectively. The remarkable magnetocaloric performance proves it to be a brilliant magnetic refrigerant operating near liquid helium temperature. |
| format | Article |
| id | doaj-art-113faef3309a4450950133c19a998b8c |
| institution | Kabale University |
| issn | 2199-160X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Electronic Materials |
| spelling | doaj-art-113faef3309a4450950133c19a998b8c2024-11-09T18:01:02ZengWiley-VCHAdvanced Electronic Materials2199-160X2024-11-011011n/an/a10.1002/aelm.202400176A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3Huicai Xie0Jiaxin Jiang1Lu Tian2Zhaojun Mo3Guodong Liu4Xinqiang Gao5Jun Shen6Yao Liu7Key Laboratory of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou 341119 ChinaKey Laboratory of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou 341119 ChinaKey Laboratory of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou 341119 ChinaKey Laboratory of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou 341119 ChinaSchool of Materials Science and Engineering Hebei University of Technology Tianjin 300130 ChinaKey Laboratory of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou 341119 ChinaSchool of Mechanical Engineering Beijing Institute of Technology Beijing 100081 ChinaKey Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan 250061 ChinaAbstract Rare earth‐based perovskites have become an attractive research interest in the field of cryogenic magnetic refrigerants due to their unique advantages in practical applications. The remarkable magnetocaloric effect (MCE) renders EuTiO3 a potential magnetic refrigerant in the liquid helium temperature range. More impressively, the tunability between antiferromagnetism (AFM) and ferromagnetism (FM) provides the feasibility of tailoring the magnetism and enhancing the magnetocaloric performance. In this study, the magnetism of EuTi0.75Al0.125Zr0.125O3 is investigated in depth through first‐principles calculations and experimental methods. Both theoretical calculations and experimental results reveal that it exhibits significant ferromagnetism due to the AFM‐FM magnetic transition promoted by the co‐substitution of Al and Zr. Lattice expansion and altered electronic interactions are responsible for the FM behavior, which leads to a significant enhancement of the MCE. With the field change of 0−1 T, the peak values of magnetic entropy change (−ΔSM), refrigerating capacity (RC), and adiabatic temperature change (ΔTad) reach 18.9 J kg−1 K−1, 77.7 J kg−1, and 7.4 K, respectively. More surprisingly, the values of maximum magnetic entropy change (−ΔSMmax) and maximum adiabatic temperature change ΔTadmax for EuTi0.75Al0.125Zr0.125O3 reach 11.4 J kg−1 K−1 and 3.7 K under the field change of 0−0.5 T, respectively. The remarkable magnetocaloric performance proves it to be a brilliant magnetic refrigerant operating near liquid helium temperature.https://doi.org/10.1002/aelm.202400176EuTi0.75Al0.125Zr0.125O3ferromagneticmagnetic refrigerantsmagnetocaloric effect |
| spellingShingle | Huicai Xie Jiaxin Jiang Lu Tian Zhaojun Mo Guodong Liu Xinqiang Gao Jun Shen Yao Liu A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3 Advanced Electronic Materials EuTi0.75Al0.125Zr0.125O3 ferromagnetic magnetic refrigerants magnetocaloric effect |
| title | A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3 |
| title_full | A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3 |
| title_fullStr | A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3 |
| title_full_unstemmed | A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3 |
| title_short | A Brilliant Magnetic Refrigerant Operating Near Liquid Helium Temperature: Enhanced Magnetocaloric Effect in Ferromagnetic EuTi0.75Al0.125Zr0.125O3 |
| title_sort | brilliant magnetic refrigerant operating near liquid helium temperature enhanced magnetocaloric effect in ferromagnetic euti0 75al0 125zr0 125o3 |
| topic | EuTi0.75Al0.125Zr0.125O3 ferromagnetic magnetic refrigerants magnetocaloric effect |
| url | https://doi.org/10.1002/aelm.202400176 |
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