Nearly constant magnetic entropy change involving two closely spaced transitions in the compound LaFe11.375Al1.625

F. X. Hu; X. L. Qian; G. J. Wang; J. Wang; J. R. Sun; X. X. Zhang; Z. H. Cheng; B. G. Shen

doi:10.1088/0953-8984/15/19/328

Nearly constant magnetic entropy change involving two closely spaced transitions in the compound LaFe_11.375Al_1.625

F. X. Hu^*, X. L. Qian, G. J. Wang, J. Wang, J. R. Sun, X. X. Zhang, Z. H. Cheng, B. G. Shen

^*Corresponding author for this work

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

13 Scopus citations

Abstract

A large change in the magnetic entropy, |ΔS|, was observed in the Fe-based NaZn₁₃-type compound LaFe_11.375Al_1.625, which was nearly temperature independent over a wide temperature range (an about 70 K span from ∼140 to 210 K). This behaviour of the magnetic entropy change is associated with two closely spaced magnetic transitions. X-ray diffraction investigation at different temperatures indicates that the crystal structure remains cubic, of NaZn₁₃ type, when the magnetic state changes with temperature, but the cell parameter changes dramatically at the first-order transition point.

Original language	English (US)
Pages (from-to)	3299-3306
Number of pages	8
Journal	Journal of Physics Condensed Matter
Volume	15
Issue number	19
DOIs	https://doi.org/10.1088/0953-8984/15/19/328
State	Published - May 21 2003
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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@article{a32a90f6e4c94a6eb3885db41333d6be,

title = "Nearly constant magnetic entropy change involving two closely spaced transitions in the compound LaFe11.375Al1.625",

abstract = "A large change in the magnetic entropy, |ΔS|, was observed in the Fe-based NaZn13-type compound LaFe11.375Al1.625, which was nearly temperature independent over a wide temperature range (an about 70 K span from ∼140 to 210 K). This behaviour of the magnetic entropy change is associated with two closely spaced magnetic transitions. X-ray diffraction investigation at different temperatures indicates that the crystal structure remains cubic, of NaZn13 type, when the magnetic state changes with temperature, but the cell parameter changes dramatically at the first-order transition point.",

author = "Hu, {F. X.} and Qian, {X. L.} and Wang, {G. J.} and J. Wang and Sun, {J. R.} and Zhang, {X. X.} and Cheng, {Z. H.} and Shen, {B. G.}",

year = "2003",

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language = "English (US)",

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TY - JOUR

T1 - Nearly constant magnetic entropy change involving two closely spaced transitions in the compound LaFe11.375Al1.625

AU - Hu, F. X.

AU - Qian, X. L.

AU - Wang, G. J.

AU - Wang, J.

AU - Sun, J. R.

AU - Zhang, X. X.

AU - Cheng, Z. H.

AU - Shen, B. G.

PY - 2003/5/21

Y1 - 2003/5/21

N2 - A large change in the magnetic entropy, |ΔS|, was observed in the Fe-based NaZn13-type compound LaFe11.375Al1.625, which was nearly temperature independent over a wide temperature range (an about 70 K span from ∼140 to 210 K). This behaviour of the magnetic entropy change is associated with two closely spaced magnetic transitions. X-ray diffraction investigation at different temperatures indicates that the crystal structure remains cubic, of NaZn13 type, when the magnetic state changes with temperature, but the cell parameter changes dramatically at the first-order transition point.

AB - A large change in the magnetic entropy, |ΔS|, was observed in the Fe-based NaZn13-type compound LaFe11.375Al1.625, which was nearly temperature independent over a wide temperature range (an about 70 K span from ∼140 to 210 K). This behaviour of the magnetic entropy change is associated with two closely spaced magnetic transitions. X-ray diffraction investigation at different temperatures indicates that the crystal structure remains cubic, of NaZn13 type, when the magnetic state changes with temperature, but the cell parameter changes dramatically at the first-order transition point.

UR - http://www.scopus.com/inward/record.url?scp=0038279930&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/15/19/328

DO - 10.1088/0953-8984/15/19/328

M3 - Article

AN - SCOPUS:0038279930

SN - 0953-8984

VL - 15

SP - 3299

EP - 3306

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 19

ER -

Nearly constant magnetic entropy change involving two closely spaced transitions in the compound LaFe_11.375Al_1.625

Abstract

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