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

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73 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1165-1168
Number of pages4
JournalJournal of Alloys and Compounds
Volume408-412
DOIs
Publication statusPublished - 2006 Feb 9
EventProceedings of the Rare Earths'04 in Nara, Japan -
Duration: 2004 Nov 72004 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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