Large Magnetocaloric Effect of PrNi Compound at Liquid-Hydrogen Temperatures

Yawei Gao; Xinqi Zheng; Hu Zhang; Dingsong Wang; Baojie Jin; Hao Liu; Shanshan Zhen; Jiahao Gao; Yang Pan; Lei Xi; Jun Liu; Zhenxing Li; Jun Shen; Shouguo Wang; Baogen Shen

doi:10.1109/TMAG.2023.3282050

Large Magnetocaloric Effect of PrNi Compound at Liquid-Hydrogen Temperatures

Yawei Gao, Xinqi Zheng^*, Hu Zhang, Dingsong Wang, Baojie Jin, Hao Liu, Shanshan Zhen, Jiahao Gao, Yang Pan, Lei Xi, Jun Liu, Zhenxing Li, Jun Shen, Shouguo Wang^*, Baogen Shen

^*此作品的通讯作者

机械与车辆学院

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

In the work, polycrystalline PrNi compound was synthesized by the arc-melting method. The crystal structure is determined as a CrB-type orthorhombic structure (Space group Pnma). The Curie temperature ( T_ C ) is determined to be 21.0 K according to the maximum absolute value of the first derivative of magnetization. The slope of the Arrott plots is positive around phase transition temperature, indicating the second-order phase transition (SOPT) characteristic. The magnetic entropy change ( -δ S_ M ) was calculated from the isothermal magnetization data based on Maxwell's relationship. The maximum value of -δ S_ M is calculated to be 7.3 and 13.0 J/kg ċ K for the magnetic field changes of 0-2 and 0-5 T, respectively. The large magnetocaloric effect (MCE) around 21.0 K with a SOPT feature indicates that PrNi is great potential in the application of magnetic refrigeration for hydrogen liquefaction.

源语言	英语
文章编号	2500804
期刊	IEEE Transactions on Magnetics
卷	59
期	11
DOI	https://doi.org/10.1109/TMAG.2023.3282050
出版状态	已出版 - 1 11月 2023

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title = "Large Magnetocaloric Effect of PrNi Compound at Liquid-Hydrogen Temperatures",

abstract = "In the work, polycrystalline PrNi compound was synthesized by the arc-melting method. The crystal structure is determined as a CrB-type orthorhombic structure (Space group Pnma). The Curie temperature ( T_ C ) is determined to be 21.0 K according to the maximum absolute value of the first derivative of magnetization. The slope of the Arrott plots is positive around phase transition temperature, indicating the second-order phase transition (SOPT) characteristic. The magnetic entropy change ( -δ S_ M ) was calculated from the isothermal magnetization data based on Maxwell's relationship. The maximum value of -δ S_ M is calculated to be 7.3 and 13.0 J/kg ċ K for the magnetic field changes of 0-2 and 0-5 T, respectively. The large magnetocaloric effect (MCE) around 21.0 K with a SOPT feature indicates that PrNi is great potential in the application of magnetic refrigeration for hydrogen liquefaction.",

keywords = "Magnetic properties, PrNi compound, magnetocaloric effect (MCE)",

author = "Yawei Gao and Xinqi Zheng and Hu Zhang and Dingsong Wang and Baojie Jin and Hao Liu and Shanshan Zhen and Jiahao Gao and Yang Pan and Lei Xi and Jun Liu and Zhenxing Li and Jun Shen and Shouguo Wang and Baogen Shen",

note = "Publisher Copyright: {\textcopyright} 1965-2012 IEEE.",

year = "2023",

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day = "1",

doi = "10.1109/TMAG.2023.3282050",

language = "English",

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T1 - Large Magnetocaloric Effect of PrNi Compound at Liquid-Hydrogen Temperatures

AU - Gao, Yawei

AU - Zheng, Xinqi

AU - Zhang, Hu

AU - Wang, Dingsong

AU - Jin, Baojie

AU - Liu, Hao

AU - Zhen, Shanshan

AU - Gao, Jiahao

AU - Pan, Yang

AU - Xi, Lei

AU - Liu, Jun

AU - Li, Zhenxing

AU - Shen, Jun

AU - Wang, Shouguo

AU - Shen, Baogen

PY - 2023/11/1

Y1 - 2023/11/1

N2 - In the work, polycrystalline PrNi compound was synthesized by the arc-melting method. The crystal structure is determined as a CrB-type orthorhombic structure (Space group Pnma). The Curie temperature ( T_ C ) is determined to be 21.0 K according to the maximum absolute value of the first derivative of magnetization. The slope of the Arrott plots is positive around phase transition temperature, indicating the second-order phase transition (SOPT) characteristic. The magnetic entropy change ( -δ S_ M ) was calculated from the isothermal magnetization data based on Maxwell's relationship. The maximum value of -δ S_ M is calculated to be 7.3 and 13.0 J/kg ċ K for the magnetic field changes of 0-2 and 0-5 T, respectively. The large magnetocaloric effect (MCE) around 21.0 K with a SOPT feature indicates that PrNi is great potential in the application of magnetic refrigeration for hydrogen liquefaction.

AB - In the work, polycrystalline PrNi compound was synthesized by the arc-melting method. The crystal structure is determined as a CrB-type orthorhombic structure (Space group Pnma). The Curie temperature ( T_ C ) is determined to be 21.0 K according to the maximum absolute value of the first derivative of magnetization. The slope of the Arrott plots is positive around phase transition temperature, indicating the second-order phase transition (SOPT) characteristic. The magnetic entropy change ( -δ S_ M ) was calculated from the isothermal magnetization data based on Maxwell's relationship. The maximum value of -δ S_ M is calculated to be 7.3 and 13.0 J/kg ċ K for the magnetic field changes of 0-2 and 0-5 T, respectively. The large magnetocaloric effect (MCE) around 21.0 K with a SOPT feature indicates that PrNi is great potential in the application of magnetic refrigeration for hydrogen liquefaction.

KW - Magnetic properties

KW - PrNi compound

KW - magnetocaloric effect (MCE)

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DO - 10.1109/TMAG.2023.3282050

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SN - 0018-9464

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

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Large Magnetocaloric Effect of PrNi Compound at Liquid-Hydrogen Temperatures

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