The effects of interstitial atoms H and B on magnetic properties and magnetocaloric effect in LaFe11.5Al1.5 compound

D. K. Zhang; J. L. Zhao; J. Shen; H. G. Zhang; M. Yue

doi:10.1063/1.4876261

The effects of interstitial atoms H and B on magnetic properties and magnetocaloric effect in LaFe_11.5Al_1.5 compound

D. K. Zhang, J. L. Zhao^*, J. Shen, H. G. Zhang, M. Yue

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

The changes in magnetic properties of LaFe_11.5Al _1.5H_x and LaFe_11.5Al_1.5B_y have been investigated. By introducing interstitial atoms H or B, the magnetic ground state is changed from the antiferromagnetic to the ferromagnetic state, accompanied by significant increases in the saturated magnetization (Ms) and the Curie temperature (T_C). An attractive feature is that the magnetic transition from the second-order to the weakly first-order with increasing hydrogen content compared to the magnetic transition from the weakly first-order to the second-order with increasing boron content. The maximum magnetic entropy change (-ΔS_M) under a field change of 0-5T increases from 10.1J/kg·K for hydrogen content x=0.12 to 12.3J/kg·K for x=1.3, while decreases from 9.6J/kg·K for boron content y=0.1 to 9.2J/kg·K for y=0.3.

Original language	English
Article number	183908
Journal	Journal of Applied Physics
Volume	115
Issue number	18
DOIs	https://doi.org/10.1063/1.4876261
Publication status	Published - 14 May 2014
Externally published	Yes

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title = "The effects of interstitial atoms H and B on magnetic properties and magnetocaloric effect in LaFe11.5Al1.5 compound",

abstract = "The changes in magnetic properties of LaFe11.5Al 1.5Hx and LaFe11.5Al1.5By have been investigated. By introducing interstitial atoms H or B, the magnetic ground state is changed from the antiferromagnetic to the ferromagnetic state, accompanied by significant increases in the saturated magnetization (Ms) and the Curie temperature (TC). An attractive feature is that the magnetic transition from the second-order to the weakly first-order with increasing hydrogen content compared to the magnetic transition from the weakly first-order to the second-order with increasing boron content. The maximum magnetic entropy change (-ΔSM) under a field change of 0-5T increases from 10.1J/kg·K for hydrogen content x=0.12 to 12.3J/kg·K for x=1.3, while decreases from 9.6J/kg·K for boron content y=0.1 to 9.2J/kg·K for y=0.3.",

author = "Zhang, {D. K.} and Zhao, {J. L.} and J. Shen and Zhang, {H. G.} and M. Yue",

year = "2014",

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doi = "10.1063/1.4876261",

language = "English",

volume = "115",

journal = "Journal of Applied Physics",

issn = "0021-8979",

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T1 - The effects of interstitial atoms H and B on magnetic properties and magnetocaloric effect in LaFe11.5Al1.5 compound

AU - Zhang, D. K.

AU - Zhao, J. L.

AU - Shen, J.

AU - Zhang, H. G.

AU - Yue, M.

PY - 2014/5/14

Y1 - 2014/5/14

N2 - The changes in magnetic properties of LaFe11.5Al 1.5Hx and LaFe11.5Al1.5By have been investigated. By introducing interstitial atoms H or B, the magnetic ground state is changed from the antiferromagnetic to the ferromagnetic state, accompanied by significant increases in the saturated magnetization (Ms) and the Curie temperature (TC). An attractive feature is that the magnetic transition from the second-order to the weakly first-order with increasing hydrogen content compared to the magnetic transition from the weakly first-order to the second-order with increasing boron content. The maximum magnetic entropy change (-ΔSM) under a field change of 0-5T increases from 10.1J/kg·K for hydrogen content x=0.12 to 12.3J/kg·K for x=1.3, while decreases from 9.6J/kg·K for boron content y=0.1 to 9.2J/kg·K for y=0.3.

AB - The changes in magnetic properties of LaFe11.5Al 1.5Hx and LaFe11.5Al1.5By have been investigated. By introducing interstitial atoms H or B, the magnetic ground state is changed from the antiferromagnetic to the ferromagnetic state, accompanied by significant increases in the saturated magnetization (Ms) and the Curie temperature (TC). An attractive feature is that the magnetic transition from the second-order to the weakly first-order with increasing hydrogen content compared to the magnetic transition from the weakly first-order to the second-order with increasing boron content. The maximum magnetic entropy change (-ΔSM) under a field change of 0-5T increases from 10.1J/kg·K for hydrogen content x=0.12 to 12.3J/kg·K for x=1.3, while decreases from 9.6J/kg·K for boron content y=0.1 to 9.2J/kg·K for y=0.3.

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JF - Journal of Applied Physics

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The effects of interstitial atoms H and B on magnetic properties and magnetocaloric effect in LaFe_11.5Al_1.5 compound

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