Large magnetocaloric effect in triangular antiferromagnet ErPd2Sb

Zuhua Chen; Xinyang Liu; Jun Shen; Guochun Zhang; Heng Tu; Junsen Xiang; Xinqi Zheng; Xiansong Liu; Xucai Kan; Wei Li; Dunhui Wang

doi:10.1063/5.0257955

Large magnetocaloric effect in triangular antiferromagnet ErPd₂Sb

Zuhua Chen, Xinyang Liu, Jun Shen^*, Guochun Zhang, Heng Tu, Junsen Xiang, Xinqi Zheng, Xiansong Liu, Xucai Kan, Wei Li, Dunhui Wang^*

^*Corresponding author for this work

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

Abstract

Adiabatic demagnetization refrigeration (ADR) has been considered as an main method for achieving temperature below 1 K. Due to the absence of long-range magnetic ordering at extremely low temperature, frustrated magnets are very competitive in cryogenic magnetic refrigerants. In this paper, we investigated the magnetocaloric effect of triangular antiferromagnet ErPd₂Sb. No evident manetic ordering can be observed at temperature above 0.56 K. Large volumetric magnetic entropy change of 172.8 mJ·cm⁻³·K⁻¹ is obtained under a small field change of 2 T at 1.3 K, which is larger than that of commercial magnetic refrigerant Gd₃Ga₅O₁₂ under the same condition. Due to the strong magnetic frustration, the minmum temperature of ErPd₂Sb is revealed to be 254.8 mK by quasi-ADR measurement, which is much lower than its magnetic ordering temperature. In addition, a field-induced phase trantition can be marked in ADR curve at 0.5 T, which is consistent with the measurement results of electrical resistivity. These excellent magnetocaloric effects indicate that ErPd₂Sb is an ideal candidate for ultra-low temperature magnetic refrigeration application.

Original language	English
Article number	152408
Journal	Applied Physics Letters
Volume	126
Issue number	15
DOIs	https://doi.org/10.1063/5.0257955
Publication status	Published - 14 Apr 2025
Externally published	Yes

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title = "Large magnetocaloric effect in triangular antiferromagnet ErPd2Sb",

abstract = "Adiabatic demagnetization refrigeration (ADR) has been considered as an main method for achieving temperature below 1 K. Due to the absence of long-range magnetic ordering at extremely low temperature, frustrated magnets are very competitive in cryogenic magnetic refrigerants. In this paper, we investigated the magnetocaloric effect of triangular antiferromagnet ErPd2Sb. No evident manetic ordering can be observed at temperature above 0.56 K. Large volumetric magnetic entropy change of 172.8 mJ·cm−3·K−1 is obtained under a small field change of 2 T at 1.3 K, which is larger than that of commercial magnetic refrigerant Gd3Ga5O12 under the same condition. Due to the strong magnetic frustration, the minmum temperature of ErPd2Sb is revealed to be 254.8 mK by quasi-ADR measurement, which is much lower than its magnetic ordering temperature. In addition, a field-induced phase trantition can be marked in ADR curve at 0.5 T, which is consistent with the measurement results of electrical resistivity. These excellent magnetocaloric effects indicate that ErPd2Sb is an ideal candidate for ultra-low temperature magnetic refrigeration application.",

author = "Zuhua Chen and Xinyang Liu and Jun Shen and Guochun Zhang and Heng Tu and Junsen Xiang and Xinqi Zheng and Xiansong Liu and Xucai Kan and Wei Li and Dunhui Wang",

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doi = "10.1063/5.0257955",

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volume = "126",

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T1 - Large magnetocaloric effect in triangular antiferromagnet ErPd2Sb

AU - Chen, Zuhua

AU - Liu, Xinyang

AU - Shen, Jun

AU - Zhang, Guochun

AU - Tu, Heng

AU - Xiang, Junsen

AU - Zheng, Xinqi

AU - Liu, Xiansong

AU - Kan, Xucai

AU - Li, Wei

AU - Wang, Dunhui

PY - 2025/4/14

Y1 - 2025/4/14

N2 - Adiabatic demagnetization refrigeration (ADR) has been considered as an main method for achieving temperature below 1 K. Due to the absence of long-range magnetic ordering at extremely low temperature, frustrated magnets are very competitive in cryogenic magnetic refrigerants. In this paper, we investigated the magnetocaloric effect of triangular antiferromagnet ErPd2Sb. No evident manetic ordering can be observed at temperature above 0.56 K. Large volumetric magnetic entropy change of 172.8 mJ·cm−3·K−1 is obtained under a small field change of 2 T at 1.3 K, which is larger than that of commercial magnetic refrigerant Gd3Ga5O12 under the same condition. Due to the strong magnetic frustration, the minmum temperature of ErPd2Sb is revealed to be 254.8 mK by quasi-ADR measurement, which is much lower than its magnetic ordering temperature. In addition, a field-induced phase trantition can be marked in ADR curve at 0.5 T, which is consistent with the measurement results of electrical resistivity. These excellent magnetocaloric effects indicate that ErPd2Sb is an ideal candidate for ultra-low temperature magnetic refrigeration application.

AB - Adiabatic demagnetization refrigeration (ADR) has been considered as an main method for achieving temperature below 1 K. Due to the absence of long-range magnetic ordering at extremely low temperature, frustrated magnets are very competitive in cryogenic magnetic refrigerants. In this paper, we investigated the magnetocaloric effect of triangular antiferromagnet ErPd2Sb. No evident manetic ordering can be observed at temperature above 0.56 K. Large volumetric magnetic entropy change of 172.8 mJ·cm−3·K−1 is obtained under a small field change of 2 T at 1.3 K, which is larger than that of commercial magnetic refrigerant Gd3Ga5O12 under the same condition. Due to the strong magnetic frustration, the minmum temperature of ErPd2Sb is revealed to be 254.8 mK by quasi-ADR measurement, which is much lower than its magnetic ordering temperature. In addition, a field-induced phase trantition can be marked in ADR curve at 0.5 T, which is consistent with the measurement results of electrical resistivity. These excellent magnetocaloric effects indicate that ErPd2Sb is an ideal candidate for ultra-low temperature magnetic refrigeration application.

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DO - 10.1063/5.0257955

M3 - Article

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VL - 126

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 15

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ER -

Large magnetocaloric effect in triangular antiferromagnet ErPd₂Sb

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