Influence of spin fluctuations on thermodynamics of itinerant-electron metamagnetic transition in La(Fe0.88Si0.12)13 compound

A. Fujita; S. Fujieda; K. Fukamichi

doi:10.1016/j.jmmm.2003.12.1147

Influence of spin fluctuations on thermodynamics of itinerant-electron metamagnetic transition in La(Fe_0.88Si_0.12)₁₃ compound

A. Fujita, S. Fujieda, K. Fukamichi

Division of Inorganic Material Research

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

9 Citations (Scopus)

Abstract

Thermodynamic properties of the itinerant-electron metamagnetic (IEM) transition in La(Fe_0.88Si_0.12)₁₃ compound are discussed. Both the transition field B_C and the change in magnetization at the transition ΔM show the thermal variation expected from the theory for the magnetic free energy renormalized by spin fluctuations. The latent heat ΔQ obtained from B_C and ΔM agrees with that obtained from heat capacity under magnetic field. Therefore, the thermal variation of ΔQ mainly comes from the magnetic contribution influenced by spin fluctuations.

Original language	English
Pages (from-to)	e629-e630
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jmmm.2003.12.1147
Publication status	Published - 2004 May 1

Keywords

Itinerant-electron metamagnetic transition
Latent heat
Magnetocaloric effect
Spin fluctuation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "Thermodynamic properties of the itinerant-electron metamagnetic (IEM) transition in La(Fe0.88Si0.12)13 compound are discussed. Both the transition field BC and the change in magnetization at the transition ΔM show the thermal variation expected from the theory for the magnetic free energy renormalized by spin fluctuations. The latent heat ΔQ obtained from BC and ΔM agrees with that obtained from heat capacity under magnetic field. Therefore, the thermal variation of ΔQ mainly comes from the magnetic contribution influenced by spin fluctuations.",

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AU - Fujita, A.

AU - Fujieda, S.

AU - Fukamichi, K.

PY - 2004/5/1

Y1 - 2004/5/1

N2 - Thermodynamic properties of the itinerant-electron metamagnetic (IEM) transition in La(Fe0.88Si0.12)13 compound are discussed. Both the transition field BC and the change in magnetization at the transition ΔM show the thermal variation expected from the theory for the magnetic free energy renormalized by spin fluctuations. The latent heat ΔQ obtained from BC and ΔM agrees with that obtained from heat capacity under magnetic field. Therefore, the thermal variation of ΔQ mainly comes from the magnetic contribution influenced by spin fluctuations.

AB - Thermodynamic properties of the itinerant-electron metamagnetic (IEM) transition in La(Fe0.88Si0.12)13 compound are discussed. Both the transition field BC and the change in magnetization at the transition ΔM show the thermal variation expected from the theory for the magnetic free energy renormalized by spin fluctuations. The latent heat ΔQ obtained from BC and ΔM agrees with that obtained from heat capacity under magnetic field. Therefore, the thermal variation of ΔQ mainly comes from the magnetic contribution influenced by spin fluctuations.

KW - Itinerant-electron metamagnetic transition

KW - Latent heat

KW - Magnetocaloric effect

KW - Spin fluctuation

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