Enhancement of the magnetocaloric effect and magnetic transition temperature in LaFe11.5Al1.5 by hydrogenation

J. L. Zhao; J. Shen; B. G. Shen; F. X. Hu; J. R. Sun

doi:10.1016/j.ssc.2010.10.006

Enhancement of the magnetocaloric effect and magnetic transition temperature in LaFe_11.5Al_1.5 by hydrogenation

J. L. Zhao, J. Shen, B. G. Shen, F. X. Hu, J. R. Sun

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

15 Citations (Scopus)

Abstract

Research highlights: Introducing hydrogen atoms to LaFe _11.5Al_1.5H_x (x=0.12, 0.6 and 1.3) compound can drive the Curie temperature TC to ambient temperature. The magnetic transition is changed from second order to weakly first order with increasing hydrogen content, leading to an increase in the magnetic entropy change ΔSM. The maximal value of ΔSM for x=1.3 is determined to be 6.7 J/kg K at 295 K under a field change of 02 T. Good reversible MCE at low fields makes the hydrides promising room-temperature magnetic refrigerants.

Original language	English
Pages (from-to)	2329-2332
Number of pages	4
Journal	Solid State Communications
Volume	150
Issue number	47-48
DOIs	https://doi.org/10.1016/j.ssc.2010.10.006
Publication status	Published - Dec 2010
Externally published	Yes

Keywords

A. LaFeAlH hydrides
D. Magnetic entropy change
D. Magnetocaloric effect

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10.1016/j.ssc.2010.10.006

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title = "Enhancement of the magnetocaloric effect and magnetic transition temperature in LaFe11.5Al1.5 by hydrogenation",

abstract = "Research highlights: Introducing hydrogen atoms to LaFe 11.5Al1.5Hx (x=0.12, 0.6 and 1.3) compound can drive the Curie temperature TC to ambient temperature. The magnetic transition is changed from second order to weakly first order with increasing hydrogen content, leading to an increase in the magnetic entropy change ΔSM. The maximal value of ΔSM for x=1.3 is determined to be 6.7 J/kg K at 295 K under a field change of 02 T. Good reversible MCE at low fields makes the hydrides promising room-temperature magnetic refrigerants.",

keywords = "A. LaFeAlH hydrides, D. Magnetic entropy change, D. Magnetocaloric effect",

author = "Zhao, {J. L.} and J. Shen and Shen, {B. G.} and Hu, {F. X.} and Sun, {J. R.}",

year = "2010",

month = dec,

doi = "10.1016/j.ssc.2010.10.006",

language = "English",

volume = "150",

pages = "2329--2332",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Enhancement of the magnetocaloric effect and magnetic transition temperature in LaFe11.5Al1.5 by hydrogenation

AU - Zhao, J. L.

AU - Shen, J.

AU - Shen, B. G.

AU - Hu, F. X.

AU - Sun, J. R.

PY - 2010/12

Y1 - 2010/12

N2 - Research highlights: Introducing hydrogen atoms to LaFe 11.5Al1.5Hx (x=0.12, 0.6 and 1.3) compound can drive the Curie temperature TC to ambient temperature. The magnetic transition is changed from second order to weakly first order with increasing hydrogen content, leading to an increase in the magnetic entropy change ΔSM. The maximal value of ΔSM for x=1.3 is determined to be 6.7 J/kg K at 295 K under a field change of 02 T. Good reversible MCE at low fields makes the hydrides promising room-temperature magnetic refrigerants.

AB - Research highlights: Introducing hydrogen atoms to LaFe 11.5Al1.5Hx (x=0.12, 0.6 and 1.3) compound can drive the Curie temperature TC to ambient temperature. The magnetic transition is changed from second order to weakly first order with increasing hydrogen content, leading to an increase in the magnetic entropy change ΔSM. The maximal value of ΔSM for x=1.3 is determined to be 6.7 J/kg K at 295 K under a field change of 02 T. Good reversible MCE at low fields makes the hydrides promising room-temperature magnetic refrigerants.

KW - A. LaFeAlH hydrides

KW - D. Magnetic entropy change

KW - D. Magnetocaloric effect

UR - http://www.scopus.com/inward/record.url?scp=78249234714&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2010.10.006

DO - 10.1016/j.ssc.2010.10.006

M3 - Article

AN - SCOPUS:78249234714

SN - 0038-1098

VL - 150

SP - 2329

EP - 2332

JO - Solid State Communications

JF - Solid State Communications

IS - 47-48

ER -

Enhancement of the magnetocaloric effect and magnetic transition temperature in LaFe_11.5Al_1.5 by hydrogenation

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Keywords

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