Large magnetic entropy change and low hysteresis loss in the Nd- and Co-doped La(Fe,Si)13 compounds

Jun Shen; Yang-Zian Li; Jian Zhang; Bo Gao; Feng-Xia Hu; Hong-Wei Zhang; Yunzhong Chen; Chuan-Bing Rong; Ji-Rong Sun

doi:10.1063/1.2829035

Large magnetic entropy change and low hysteresis loss in the Nd- and Co-doped La(Fe,Si)₁₃ compounds

Jun Shen, Yang-Zian Li, Jian Zhang, Bo Gao, Feng-Xia Hu, Hong-Wei Zhang, Yunzhong Chen, Chuan-Bing Rong, Ji-Rong Sun

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Abstract

The effect of Nd and Co substitution on magnetic entropy changes and hysteresis losses has been investigated for the cubic NaZn₁₃-type LaFe_13−xSixcompounds. Partially replacing La with Nd leads to a decrease of the Curie temperatureTC and an increase of the magnetic entropy change ΔS. Substitution of Co for Fe in La_0.7Nd_0.3Fe_10.5Si_1.5 can adjust T_C to around room temperature. A large ΔS of 15J∕KgK at T_C=280K for a field change from 0to5T and a small hysteresis loss close to zero near T_C have been obtained in La_0.7Nd_0.3Fe_10.7Co_0.8Si_1.5. The Co-doped NaZn₁₃-type LaNdFeSi compounds may be a suitable candidate for magnetic refrigerant near room temperature.

Original language	English
Article number	07B317
Journal	Journal of Applied Physics
Volume	103
Issue number	7
Number of pages	3
ISSN	0021-8979
DOIs	https://doi.org/10.1063/1.2829035
Publication status	Published - 2008
Externally published	Yes

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title = "Large magnetic entropy change and low hysteresis loss in the Nd- and Co-doped La(Fe,Si)13 compounds",

abstract = "The effect of Nd and Co substitution on magnetic entropy changes and hysteresis losses has been investigated for the cubic NaZn13-type LaFe13−x Sixcompounds. Partially replacing La with Nd leads to a decrease of the Curie temperatureTC and an increase of the magnetic entropy change ΔS. Substitution of Co for Fe in La0.7Nd0.3Fe10.5Si1.5 can adjust TC to around room temperature. A large ΔS of 15J∕KgK at TC=280K for a field change from 0to5T and a small hysteresis loss close to zero near TC have been obtained in La0.7Nd0.3Fe10.7Co0.8Si1.5. The Co-doped NaZn13-type LaNdFeSi compounds may be a suitable candidate for magnetic refrigerant near room temperature.",

author = "Jun Shen and Yang-Zian Li and Jian Zhang and Bo Gao and Feng-Xia Hu and Hong-Wei Zhang and Yunzhong Chen and Chuan-Bing Rong and Ji-Rong Sun",

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T1 - Large magnetic entropy change and low hysteresis loss in the Nd- and Co-doped La(Fe,Si)13 compounds

AU - Shen, Jun

AU - Li, Yang-Zian

AU - Zhang, Jian

AU - Gao, Bo

AU - Hu, Feng-Xia

AU - Zhang, Hong-Wei

AU - Chen, Yunzhong

AU - Rong, Chuan-Bing

AU - Sun, Ji-Rong

PY - 2008

Y1 - 2008

N2 - The effect of Nd and Co substitution on magnetic entropy changes and hysteresis losses has been investigated for the cubic NaZn13-type LaFe13−x Sixcompounds. Partially replacing La with Nd leads to a decrease of the Curie temperatureTC and an increase of the magnetic entropy change ΔS. Substitution of Co for Fe in La0.7Nd0.3Fe10.5Si1.5 can adjust TC to around room temperature. A large ΔS of 15J∕KgK at TC=280K for a field change from 0to5T and a small hysteresis loss close to zero near TC have been obtained in La0.7Nd0.3Fe10.7Co0.8Si1.5. The Co-doped NaZn13-type LaNdFeSi compounds may be a suitable candidate for magnetic refrigerant near room temperature.

AB - The effect of Nd and Co substitution on magnetic entropy changes and hysteresis losses has been investigated for the cubic NaZn13-type LaFe13−x Sixcompounds. Partially replacing La with Nd leads to a decrease of the Curie temperatureTC and an increase of the magnetic entropy change ΔS. Substitution of Co for Fe in La0.7Nd0.3Fe10.5Si1.5 can adjust TC to around room temperature. A large ΔS of 15J∕KgK at TC=280K for a field change from 0to5T and a small hysteresis loss close to zero near TC have been obtained in La0.7Nd0.3Fe10.7Co0.8Si1.5. The Co-doped NaZn13-type LaNdFeSi compounds may be a suitable candidate for magnetic refrigerant near room temperature.

U2 - 10.1063/1.2829035

DO - 10.1063/1.2829035

M3 - Journal article

SN - 0021-8979

VL - 103

JO - Journal of Applied Physics

JF - Journal of Applied Physics

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M1 - 07B317

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