Structure, magnetic and magnetocaloric properties of polycrystalline Er3AlC compound

Lu Tian; Jianjian Gong; Qi Fu; Xinqiang Gao; Zhaojun Mo; Zhenxing Li; Jun Shen

doi:10.1016/j.jmmm.2022.170194

Structure, magnetic and magnetocaloric properties of polycrystalline Er₃AlC compound

Lu Tian, Jianjian Gong, Qi Fu, Xinqiang Gao, Zhaojun Mo, Zhenxing Li^*, Jun Shen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The development of magnetic materials with large magnetocaloric effects for solid state refrigeration technology is receiving increasing attention. In this work, the crystal structure, magnetic and magnetocaloric properties of polycrystalline Er₃AlC compound are investigated. Powder X-ray diffraction indicate that Er₃AlC crystallizes in the inverse perovskite structure, belonging to the space group Pm3¯m(2 2 1). The polycrystalline sample exhibits two successive magnetic transitions: antiferromagnetic-ferromagnetic below 2 K and ferromagnetic–paramagnetic transition around 4.1 K. The value of the maximum magnetic entropy changes are 13.9 J/kg K and 30.5 J/kg K under the field changes of 0–2 T and 0–5 T, respectively. The large magnetic entropy change under low fields makes Er₃AlC compound a potential candidate for cryogenic magnetic refrigeration.

Original language	English
Article number	170194
Journal	Journal of Magnetism and Magnetic Materials
Volume	566
DOIs	https://doi.org/10.1016/j.jmmm.2022.170194
Publication status	Published - 15 Jan 2023
Externally published	Yes

Keywords

Cryogenic magnetic refrigeration
ErAlC compound
Magnetocaloric effect
Second-order phase transition

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10.1016/j.jmmm.2022.170194

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title = "Structure, magnetic and magnetocaloric properties of polycrystalline Er3AlC compound",

abstract = "The development of magnetic materials with large magnetocaloric effects for solid state refrigeration technology is receiving increasing attention. In this work, the crystal structure, magnetic and magnetocaloric properties of polycrystalline Er3AlC compound are investigated. Powder X-ray diffraction indicate that Er3AlC crystallizes in the inverse perovskite structure, belonging to the space group Pm3¯m(2 2 1). The polycrystalline sample exhibits two successive magnetic transitions: antiferromagnetic-ferromagnetic below 2 K and ferromagnetic–paramagnetic transition around 4.1 K. The value of the maximum magnetic entropy changes are 13.9 J/kg K and 30.5 J/kg K under the field changes of 0–2 T and 0–5 T, respectively. The large magnetic entropy change under low fields makes Er3AlC compound a potential candidate for cryogenic magnetic refrigeration.",

keywords = "Cryogenic magnetic refrigeration, ErAlC compound, Magnetocaloric effect, Second-order phase transition",

author = "Lu Tian and Jianjian Gong and Qi Fu and Xinqiang Gao and Zhaojun Mo and Zhenxing Li and Jun Shen",

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doi = "10.1016/j.jmmm.2022.170194",

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T1 - Structure, magnetic and magnetocaloric properties of polycrystalline Er3AlC compound

AU - Tian, Lu

AU - Gong, Jianjian

AU - Fu, Qi

AU - Gao, Xinqiang

AU - Mo, Zhaojun

AU - Li, Zhenxing

AU - Shen, Jun

PY - 2023/1/15

Y1 - 2023/1/15

N2 - The development of magnetic materials with large magnetocaloric effects for solid state refrigeration technology is receiving increasing attention. In this work, the crystal structure, magnetic and magnetocaloric properties of polycrystalline Er3AlC compound are investigated. Powder X-ray diffraction indicate that Er3AlC crystallizes in the inverse perovskite structure, belonging to the space group Pm3¯m(2 2 1). The polycrystalline sample exhibits two successive magnetic transitions: antiferromagnetic-ferromagnetic below 2 K and ferromagnetic–paramagnetic transition around 4.1 K. The value of the maximum magnetic entropy changes are 13.9 J/kg K and 30.5 J/kg K under the field changes of 0–2 T and 0–5 T, respectively. The large magnetic entropy change under low fields makes Er3AlC compound a potential candidate for cryogenic magnetic refrigeration.

AB - The development of magnetic materials with large magnetocaloric effects for solid state refrigeration technology is receiving increasing attention. In this work, the crystal structure, magnetic and magnetocaloric properties of polycrystalline Er3AlC compound are investigated. Powder X-ray diffraction indicate that Er3AlC crystallizes in the inverse perovskite structure, belonging to the space group Pm3¯m(2 2 1). The polycrystalline sample exhibits two successive magnetic transitions: antiferromagnetic-ferromagnetic below 2 K and ferromagnetic–paramagnetic transition around 4.1 K. The value of the maximum magnetic entropy changes are 13.9 J/kg K and 30.5 J/kg K under the field changes of 0–2 T and 0–5 T, respectively. The large magnetic entropy change under low fields makes Er3AlC compound a potential candidate for cryogenic magnetic refrigeration.

KW - Cryogenic magnetic refrigeration

KW - ErAlC compound

KW - Magnetocaloric effect

KW - Second-order phase transition

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SN - 0304-8853

VL - 566

JO - Journal of Magnetism and Magnetic Materials

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M1 - 170194

ER -

Structure, magnetic and magnetocaloric properties of polycrystalline Er₃AlC compound

Abstract

Keywords

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