Order of magnetic transition and large magnetocaloric effect in Er 3Co

Jun Shen; Jin Liang Zhao; Feng Xia Hu; Jian Feng Wu; Ji Rong Sun; Bao Gen Shen

doi:10.1088/1674-1056/19/4/047502

Order of magnetic transition and large magnetocaloric effect in Er ₃Co

Jun Shen^*, Jin Liang Zhao, Feng Xia Hu, Jian Feng Wu, Ji Rong Sun, Bao Gen Shen

^*Corresponding author for this work

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

27 Citations (Scopus)

Abstract

We have studied the magnetic and magnetocaloric properties of the Er ₃Co compound, which undergoes ferromagnetic ordering below the Curie temperature T_C 13 K. It is found by fitting the isothermal magnetization curves that the Landau model is appropriate to describe the Er₃Co compound. The giant magnetocaloric effect (MCE) without hysteresis loss around T_C is found to result from the second-order ferromagnetic-to-paramagnetic transition. The maximal value of magnetic entropy change is 24.5 J/kgK with a refrigerant capacity (RC) value of 476 J/kg for a field change of 0-5 T. Large reversible MEC and RC indicate the potentiality of Er₃Co as a candidate magnetic refrigerant at low temperatures.

Original language	English
Article number	047502
Journal	Chinese Physics B
Volume	19
Issue number	4
DOIs	https://doi.org/10.1088/1674-1056/19/4/047502
Publication status	Published - 2010
Externally published	Yes

Keywords

ErCo compound
Magnetic transition
Magnetocaloric effect

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10.1088/1674-1056/19/4/047502

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title = "Order of magnetic transition and large magnetocaloric effect in Er 3Co",

abstract = "We have studied the magnetic and magnetocaloric properties of the Er 3Co compound, which undergoes ferromagnetic ordering below the Curie temperature TC 13 K. It is found by fitting the isothermal magnetization curves that the Landau model is appropriate to describe the Er3Co compound. The giant magnetocaloric effect (MCE) without hysteresis loss around TC is found to result from the second-order ferromagnetic-to-paramagnetic transition. The maximal value of magnetic entropy change is 24.5 J/kgK with a refrigerant capacity (RC) value of 476 J/kg for a field change of 0-5 T. Large reversible MEC and RC indicate the potentiality of Er3Co as a candidate magnetic refrigerant at low temperatures.",

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T1 - Order of magnetic transition and large magnetocaloric effect in Er 3Co

AU - Shen, Jun

AU - Zhao, Jin Liang

AU - Hu, Feng Xia

AU - Wu, Jian Feng

AU - Sun, Ji Rong

AU - Shen, Bao Gen

PY - 2010

Y1 - 2010

N2 - We have studied the magnetic and magnetocaloric properties of the Er 3Co compound, which undergoes ferromagnetic ordering below the Curie temperature TC 13 K. It is found by fitting the isothermal magnetization curves that the Landau model is appropriate to describe the Er3Co compound. The giant magnetocaloric effect (MCE) without hysteresis loss around TC is found to result from the second-order ferromagnetic-to-paramagnetic transition. The maximal value of magnetic entropy change is 24.5 J/kgK with a refrigerant capacity (RC) value of 476 J/kg for a field change of 0-5 T. Large reversible MEC and RC indicate the potentiality of Er3Co as a candidate magnetic refrigerant at low temperatures.

AB - We have studied the magnetic and magnetocaloric properties of the Er 3Co compound, which undergoes ferromagnetic ordering below the Curie temperature TC 13 K. It is found by fitting the isothermal magnetization curves that the Landau model is appropriate to describe the Er3Co compound. The giant magnetocaloric effect (MCE) without hysteresis loss around TC is found to result from the second-order ferromagnetic-to-paramagnetic transition. The maximal value of magnetic entropy change is 24.5 J/kgK with a refrigerant capacity (RC) value of 476 J/kg for a field change of 0-5 T. Large reversible MEC and RC indicate the potentiality of Er3Co as a candidate magnetic refrigerant at low temperatures.

KW - ErCo compound

KW - Magnetic transition

KW - Magnetocaloric effect

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DO - 10.1088/1674-1056/19/4/047502

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VL - 19

JO - Chinese Physics B

JF - Chinese Physics B

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Order of magnetic transition and large magnetocaloric effect in Er ₃Co

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