Large magnetocaloric effects enhanced by partial substitution of Ce for la in La(Fe0.88Si0.12)13 compound

S. Fujieda; A. Fujita; K. Fukamichi; N. Hirano; S. Nagaya

doi:10.1016/j.jallcom.2004.12.112

Large magnetocaloric effects enhanced by partial substitution of Ce for la in La(Fe_0.88Si_0.12)₁₃ compound

S. Fujieda, A. Fujita, K. Fukamichi, N. Hirano, S. Nagaya

Division of Inorganic Material Research

Research output: Contribution to journal › Conference article › peer-review

73 Citations (Scopus)

Abstract

The itinerant-electron metamagnetic (IEM) transition and magnetocaloric effects (MCEs) in cubic NaZn₁₃-type La_1-zCe _z(Fe_0.88Si_0.12)₁₃ with z = 0.0, 0.1, 0.2 and 0.3 have been investigated. By partial substitution of Ce for La, the Curie temperature T_C decreases with decreasing the lattice constant. In addition, the isothermal magnetic entropy change ΔS_m and the adiabatic temperature change ΔT_ad due to the IEM transition are enhanced because of the increase of the entropy change caused by the latent heat. Therefore, the partial substitution of Ce for La in La(Fe _xSi_1-x)₁₃ is highly effective in the enhancement of MCEs.

Original language	English
Pages (from-to)	1165-1168
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	408-412
DOIs	https://doi.org/10.1016/j.jallcom.2004.12.112
Publication status	Published - 2006 Feb 9
Event	Proceedings of the Rare Earths'04 in Nara, Japan - Duration: 2004 Nov 7 → 2004 Nov 12

Keywords

Itinerant-electron metamagnetic transition
Magnetic refrigeration

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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@article{6551c09a4559463e8c4beae66cc62901,

title = "Large magnetocaloric effects enhanced by partial substitution of Ce for la in La(Fe0.88Si0.12)13 compound",

abstract = "The itinerant-electron metamagnetic (IEM) transition and magnetocaloric effects (MCEs) in cubic NaZn13-type La1-zCe z(Fe0.88Si0.12)13 with z = 0.0, 0.1, 0.2 and 0.3 have been investigated. By partial substitution of Ce for La, the Curie temperature TC decreases with decreasing the lattice constant. In addition, the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad due to the IEM transition are enhanced because of the increase of the entropy change caused by the latent heat. Therefore, the partial substitution of Ce for La in La(Fe xSi1-x)13 is highly effective in the enhancement of MCEs.",

keywords = "Itinerant-electron metamagnetic transition, Magnetic refrigeration",

author = "S. Fujieda and A. Fujita and K. Fukamichi and N. Hirano and S. Nagaya",

year = "2006",

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doi = "10.1016/j.jallcom.2004.12.112",

language = "English",

volume = "408-412",

pages = "1165--1168",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

note = "Proceedings of the Rare Earths'04 in Nara, Japan ; Conference date: 07-11-2004 Through 12-11-2004",

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TY - JOUR

T1 - Large magnetocaloric effects enhanced by partial substitution of Ce for la in La(Fe0.88Si0.12)13 compound

AU - Fujieda, S.

AU - Fujita, A.

AU - Fukamichi, K.

AU - Hirano, N.

AU - Nagaya, S.

PY - 2006/2/9

Y1 - 2006/2/9

N2 - The itinerant-electron metamagnetic (IEM) transition and magnetocaloric effects (MCEs) in cubic NaZn13-type La1-zCe z(Fe0.88Si0.12)13 with z = 0.0, 0.1, 0.2 and 0.3 have been investigated. By partial substitution of Ce for La, the Curie temperature TC decreases with decreasing the lattice constant. In addition, the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad due to the IEM transition are enhanced because of the increase of the entropy change caused by the latent heat. Therefore, the partial substitution of Ce for La in La(Fe xSi1-x)13 is highly effective in the enhancement of MCEs.

AB - The itinerant-electron metamagnetic (IEM) transition and magnetocaloric effects (MCEs) in cubic NaZn13-type La1-zCe z(Fe0.88Si0.12)13 with z = 0.0, 0.1, 0.2 and 0.3 have been investigated. By partial substitution of Ce for La, the Curie temperature TC decreases with decreasing the lattice constant. In addition, the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad due to the IEM transition are enhanced because of the increase of the entropy change caused by the latent heat. Therefore, the partial substitution of Ce for La in La(Fe xSi1-x)13 is highly effective in the enhancement of MCEs.

KW - Itinerant-electron metamagnetic transition

KW - Magnetic refrigeration

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VL - 408-412

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EP - 1168

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

T2 - Proceedings of the Rare Earths'04 in Nara, Japan

Y2 - 7 November 2004 through 12 November 2004

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