Reduction of hysteresis loss and large magnetic entropy change in the Na Zn13 -type LaPrFeSiC interstitial compounds

J. Shen; B. Gao; H. W. Zhang; F. X. Hu; Y. X. Li; J. R. Sun; B. G. Shen

doi:10.1063/1.2794412

Reduction of hysteresis loss and large magnetic entropy change in the Na Zn13 -type LaPrFeSiC interstitial compounds

J. Shen^*, B. Gao, H. W. Zhang, F. X. Hu, Y. X. Li, J. R. Sun, B. G. Shen

^*Corresponding author for this work

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

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Abstract

Magnetic properties and magnetic entropy change of the Na Zn13 -type La0.5 Pr0.5 Fe11.5 Si1.5 Cx compounds have been investigated. Both the lattice parameter and the Curie temperature increase linearly with increasing carbon concentration. The maximum hysteresis loss at TC reduces remarkably from 94.8 Jkg for x=0 to 23.1 Jkg for x=0.3 because of the weakening of the itinerant electron metamagnetic transition. However, the magnetic entropy change remains at the large values of 32.4 Jkg K for x=0 and 27.6 Jkg K for x=0.3 under a field change of 0-5 T, which implies that a large magnetocaloric effect and a small hysteresis loss have been simultaneously achieved in the La0.5 Pr0.5 Fe11.5 Si1.5 Cx carbides.

Original language	English
Article number	142504
Journal	Applied Physics Letters
Volume	91
Issue number	14
DOIs	https://doi.org/10.1063/1.2794412
Publication status	Published - 2007
Externally published	Yes

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title = "Reduction of hysteresis loss and large magnetic entropy change in the Na Zn13 -type LaPrFeSiC interstitial compounds",

abstract = "Magnetic properties and magnetic entropy change of the Na Zn13 -type La0.5 Pr0.5 Fe11.5 Si1.5 Cx compounds have been investigated. Both the lattice parameter and the Curie temperature increase linearly with increasing carbon concentration. The maximum hysteresis loss at TC reduces remarkably from 94.8 Jkg for x=0 to 23.1 Jkg for x=0.3 because of the weakening of the itinerant electron metamagnetic transition. However, the magnetic entropy change remains at the large values of 32.4 Jkg K for x=0 and 27.6 Jkg K for x=0.3 under a field change of 0-5 T, which implies that a large magnetocaloric effect and a small hysteresis loss have been simultaneously achieved in the La0.5 Pr0.5 Fe11.5 Si1.5 Cx carbides.",

author = "J. Shen and B. Gao and Zhang, {H. W.} and Hu, {F. X.} and Li, {Y. X.} and Sun, {J. R.} and Shen, {B. G.}",

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T1 - Reduction of hysteresis loss and large magnetic entropy change in the Na Zn13 -type LaPrFeSiC interstitial compounds

AU - Shen, J.

AU - Gao, B.

AU - Zhang, H. W.

AU - Hu, F. X.

AU - Li, Y. X.

AU - Sun, J. R.

AU - Shen, B. G.

PY - 2007

Y1 - 2007

N2 - Magnetic properties and magnetic entropy change of the Na Zn13 -type La0.5 Pr0.5 Fe11.5 Si1.5 Cx compounds have been investigated. Both the lattice parameter and the Curie temperature increase linearly with increasing carbon concentration. The maximum hysteresis loss at TC reduces remarkably from 94.8 Jkg for x=0 to 23.1 Jkg for x=0.3 because of the weakening of the itinerant electron metamagnetic transition. However, the magnetic entropy change remains at the large values of 32.4 Jkg K for x=0 and 27.6 Jkg K for x=0.3 under a field change of 0-5 T, which implies that a large magnetocaloric effect and a small hysteresis loss have been simultaneously achieved in the La0.5 Pr0.5 Fe11.5 Si1.5 Cx carbides.

AB - Magnetic properties and magnetic entropy change of the Na Zn13 -type La0.5 Pr0.5 Fe11.5 Si1.5 Cx compounds have been investigated. Both the lattice parameter and the Curie temperature increase linearly with increasing carbon concentration. The maximum hysteresis loss at TC reduces remarkably from 94.8 Jkg for x=0 to 23.1 Jkg for x=0.3 because of the weakening of the itinerant electron metamagnetic transition. However, the magnetic entropy change remains at the large values of 32.4 Jkg K for x=0 and 27.6 Jkg K for x=0.3 under a field change of 0-5 T, which implies that a large magnetocaloric effect and a small hysteresis loss have been simultaneously achieved in the La0.5 Pr0.5 Fe11.5 Si1.5 Cx carbides.

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JO - Applied Physics Letters

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Reduction of hysteresis loss and large magnetic entropy change in the Na Zn13 -type LaPrFeSiC interstitial compounds

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