Unstable antiferromagnetism and large reversible magnetocaloric effect in TmNi2Si2

Lu Tian; Bo Xu; Huan Chen; Zhaojun Mo; Zhenxing Li; Guodong Liu; Jun Shen

doi:10.1007/s40843-023-2539-3

Unstable antiferromagnetism and large reversible magnetocaloric effect in TmNi₂Si₂

Lu Tian, Bo Xu, Huan Chen, Zhaojun Mo^*, Zhenxing Li, Guodong Liu^*, Jun Shen

^*Corresponding author for this work

School of Mechanical Engineering

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

14 Citations (Scopus)

Abstract

Based on experimental and theoretical results, the magnetic properties, magnetic phase transitions, and magnetocaloric effect (MCE) of TmNi₂Si₂ were studied. In this study, we confirmed that unstable antiferromagnetic interaction underwent a field-induced phase transition from meta-magnetic to ferromagnetic under magnetic fields exceeding 0.2 T in TmNi₂Si₂. Moreover, a large reversible cryogenic MCE was observed. The maximum magnetic entropy change (−ΔS_M^max) and refrigeration capacity were found to be 15.4 J kg⁻¹ K⁻¹ and 68.0 J kg⁻¹, respectively, when changing the magnetic field from 0 to 2 T. The large reversible MCE observed under the low magnetic field change indicates the potential application of TmNi₂Si₂ in cryogenic magnetic refrigerators.[Figure not available: see fulltext.]

Translated title of the contribution	TmNi₂Si₂化合物中不稳定的反铁磁性和大的可逆磁热效应
Original language	English
Pages (from-to)	3984-3990
Number of pages	7
Journal	Science China Materials
Volume	66
Issue number	10
DOIs	https://doi.org/10.1007/s40843-023-2539-3
Publication status	Published - Oct 2023

Keywords

TmNiSi compound
cryogenic magnetic refrigeration
magnetic phase transition
magnetic properties
magnetocaloric effects

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10.1007/s40843-023-2539-3

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title = "Unstable antiferromagnetism and large reversible magnetocaloric effect in TmNi2Si2",

abstract = "Based on experimental and theoretical results, the magnetic properties, magnetic phase transitions, and magnetocaloric effect (MCE) of TmNi2Si2 were studied. In this study, we confirmed that unstable antiferromagnetic interaction underwent a field-induced phase transition from meta-magnetic to ferromagnetic under magnetic fields exceeding 0.2 T in TmNi2Si2. Moreover, a large reversible cryogenic MCE was observed. The maximum magnetic entropy change (−ΔSMmax) and refrigeration capacity were found to be 15.4 J kg−1 K−1 and 68.0 J kg−1, respectively, when changing the magnetic field from 0 to 2 T. The large reversible MCE observed under the low magnetic field change indicates the potential application of TmNi2Si2 in cryogenic magnetic refrigerators.[Figure not available: see fulltext.]",

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author = "Lu Tian and Bo Xu and Huan Chen and Zhaojun Mo and Zhenxing Li and Guodong Liu and Jun Shen",

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TY - JOUR

T1 - Unstable antiferromagnetism and large reversible magnetocaloric effect in TmNi2Si2

AU - Tian, Lu

AU - Xu, Bo

AU - Chen, Huan

AU - Mo, Zhaojun

AU - Li, Zhenxing

AU - Liu, Guodong

AU - Shen, Jun

PY - 2023/10

Y1 - 2023/10

N2 - Based on experimental and theoretical results, the magnetic properties, magnetic phase transitions, and magnetocaloric effect (MCE) of TmNi2Si2 were studied. In this study, we confirmed that unstable antiferromagnetic interaction underwent a field-induced phase transition from meta-magnetic to ferromagnetic under magnetic fields exceeding 0.2 T in TmNi2Si2. Moreover, a large reversible cryogenic MCE was observed. The maximum magnetic entropy change (−ΔSMmax) and refrigeration capacity were found to be 15.4 J kg−1 K−1 and 68.0 J kg−1, respectively, when changing the magnetic field from 0 to 2 T. The large reversible MCE observed under the low magnetic field change indicates the potential application of TmNi2Si2 in cryogenic magnetic refrigerators.[Figure not available: see fulltext.]

AB - Based on experimental and theoretical results, the magnetic properties, magnetic phase transitions, and magnetocaloric effect (MCE) of TmNi2Si2 were studied. In this study, we confirmed that unstable antiferromagnetic interaction underwent a field-induced phase transition from meta-magnetic to ferromagnetic under magnetic fields exceeding 0.2 T in TmNi2Si2. Moreover, a large reversible cryogenic MCE was observed. The maximum magnetic entropy change (−ΔSMmax) and refrigeration capacity were found to be 15.4 J kg−1 K−1 and 68.0 J kg−1, respectively, when changing the magnetic field from 0 to 2 T. The large reversible MCE observed under the low magnetic field change indicates the potential application of TmNi2Si2 in cryogenic magnetic refrigerators.[Figure not available: see fulltext.]

KW - TmNiSi compound

KW - cryogenic magnetic refrigeration

KW - magnetic phase transition

KW - magnetic properties

KW - magnetocaloric effects

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DO - 10.1007/s40843-023-2539-3

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SN - 2095-8226

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SP - 3984

EP - 3990

JO - Science China Materials

JF - Science China Materials

IS - 10

ER -

Unstable antiferromagnetism and large reversible magnetocaloric effect in TmNi₂Si₂

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