Large cryogenic magnetocaloric effect in Na5Gd4F(SiO4)4

Zuhua Chen; Shilin Yu; Guochun Zhang; Changkun Wang; Jiahao Gao; Yicai Zhang; Yanan Zhao; Zhenxing Li; Jun Shen; Heng Tu

doi:10.1016/j.cryogenics.2024.103955

Large cryogenic magnetocaloric effect in Na₅Gd₄F(SiO₄)₄

Zuhua Chen, Shilin Yu, Guochun Zhang, Changkun Wang, Jiahao Gao, Yicai Zhang, Yanan Zhao, Zhenxing Li, Jun Shen^*, Heng Tu^*

^*Corresponding author for this work

School of Mechanical Engineering

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

Abstract

The adiabatic demagnetization refrigeration based on the magnetocaloric effect of magnetic materials has been regarded as an effective technology to attain sub-Kelvin temperature. In this article, the magnetic properties and MCE of Na₅Gd₄F(SiO₄)₄ compound are investigated. Due to the high Gd³⁺ ion/anion ligand ratio and weak magnetic interaction, Na₅Gd₄F(SiO₄)₄ exhibits a large magnetic entropy change of 49.6 J·kg⁻¹·K⁻¹ under magnetic field change of 0–7 T at 2.6 K, which surpasses the commercial magnetic refrigerant Gd₃Ga₅O₁₂ under the same conditions. Besides, its refrigeration capacity and the relative cooling power under magnetic field change of 0–7 T reaches up to 308.9 J·kg⁻¹ and 406.7 J·kg⁻¹, respectively. These properties indicate that Na₅Gd₄F(SiO₄)₄ compound is a promising magnetic refrigeration material.

Original language	English
Article number	103955
Journal	Cryogenics
Volume	143
DOIs	https://doi.org/10.1016/j.cryogenics.2024.103955
Publication status	Published - Oct 2024

Keywords

Gd-based oxides
Magnetic entropy change
Magnetic refrigeration

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@article{5e2927e3064e4220b590b84e928d6232,

title = "Large cryogenic magnetocaloric effect in Na5Gd4F(SiO4)4",

abstract = "The adiabatic demagnetization refrigeration based on the magnetocaloric effect of magnetic materials has been regarded as an effective technology to attain sub-Kelvin temperature. In this article, the magnetic properties and MCE of Na5Gd4F(SiO4)4 compound are investigated. Due to the high Gd3+ ion/anion ligand ratio and weak magnetic interaction, Na5Gd4F(SiO4)4 exhibits a large magnetic entropy change of 49.6 J·kg−1·K−1 under magnetic field change of 0–7 T at 2.6 K, which surpasses the commercial magnetic refrigerant Gd3Ga5O12 under the same conditions. Besides, its refrigeration capacity and the relative cooling power under magnetic field change of 0–7 T reaches up to 308.9 J·kg−1 and 406.7 J·kg−1, respectively. These properties indicate that Na5Gd4F(SiO4)4 compound is a promising magnetic refrigeration material.",

keywords = "Gd-based oxides, Magnetic entropy change, Magnetic refrigeration",

author = "Zuhua Chen and Shilin Yu and Guochun Zhang and Changkun Wang and Jiahao Gao and Yicai Zhang and Yanan Zhao and Zhenxing Li and Jun Shen and Heng Tu",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = oct,

doi = "10.1016/j.cryogenics.2024.103955",

language = "English",

volume = "143",

journal = "Cryogenics",

issn = "0011-2275",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Large cryogenic magnetocaloric effect in Na5Gd4F(SiO4)4

AU - Chen, Zuhua

AU - Yu, Shilin

AU - Zhang, Guochun

AU - Wang, Changkun

AU - Gao, Jiahao

AU - Zhang, Yicai

AU - Zhao, Yanan

AU - Li, Zhenxing

AU - Shen, Jun

AU - Tu, Heng

PY - 2024/10

Y1 - 2024/10

N2 - The adiabatic demagnetization refrigeration based on the magnetocaloric effect of magnetic materials has been regarded as an effective technology to attain sub-Kelvin temperature. In this article, the magnetic properties and MCE of Na5Gd4F(SiO4)4 compound are investigated. Due to the high Gd3+ ion/anion ligand ratio and weak magnetic interaction, Na5Gd4F(SiO4)4 exhibits a large magnetic entropy change of 49.6 J·kg−1·K−1 under magnetic field change of 0–7 T at 2.6 K, which surpasses the commercial magnetic refrigerant Gd3Ga5O12 under the same conditions. Besides, its refrigeration capacity and the relative cooling power under magnetic field change of 0–7 T reaches up to 308.9 J·kg−1 and 406.7 J·kg−1, respectively. These properties indicate that Na5Gd4F(SiO4)4 compound is a promising magnetic refrigeration material.

AB - The adiabatic demagnetization refrigeration based on the magnetocaloric effect of magnetic materials has been regarded as an effective technology to attain sub-Kelvin temperature. In this article, the magnetic properties and MCE of Na5Gd4F(SiO4)4 compound are investigated. Due to the high Gd3+ ion/anion ligand ratio and weak magnetic interaction, Na5Gd4F(SiO4)4 exhibits a large magnetic entropy change of 49.6 J·kg−1·K−1 under magnetic field change of 0–7 T at 2.6 K, which surpasses the commercial magnetic refrigerant Gd3Ga5O12 under the same conditions. Besides, its refrigeration capacity and the relative cooling power under magnetic field change of 0–7 T reaches up to 308.9 J·kg−1 and 406.7 J·kg−1, respectively. These properties indicate that Na5Gd4F(SiO4)4 compound is a promising magnetic refrigeration material.

KW - Gd-based oxides

KW - Magnetic entropy change

KW - Magnetic refrigeration

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U2 - 10.1016/j.cryogenics.2024.103955

DO - 10.1016/j.cryogenics.2024.103955

M3 - Article

AN - SCOPUS:85205919008

SN - 0011-2275

VL - 143

JO - Cryogenics

JF - Cryogenics

M1 - 103955

ER -

Large cryogenic magnetocaloric effect in Na₅Gd₄F(SiO₄)₄

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Keywords

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