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.
N1 - Funding Information:
The present work was partly supported by a Grant-Aid for Science Research (A), No. 14702050, from the Japan Society for the Promotion of Science. One of the authors (S. Fujieda) acknowledges the support of the JSPS Research Fellowships for Young Scientists.
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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U2 - 10.1016/j.jallcom.2004.12.112
DO - 10.1016/j.jallcom.2004.12.112
M3 - Conference article
AN - SCOPUS:31344475185
VL - 408-412
SP - 1165
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
ER -