Large magnetocaloric effect in La(FexSi1-x) 13 itinerant-electron metamagnetic compounds

S. Fujieda, Asaya Fujita, K. Fukamichi

研究成果: Article査読

402 被引用数 (Scopus)

抄録

The magnetocaloric effect (MCE) originated from the itinerant-electron metamagnetic transition for La(FexSi1-x)13 compounds has been investigated. With increasing Fe concentration, the MCE is enhanced and both the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad for the compound with x=0.90 are -28J/kgK and 8.1 K, respectively, by changing the magnetic field from 0 to 2 T. Similar large MCE values are achieved around room temperature by controlling the Curie temperature by means of hydrogen absorption. Consequently, La(FexSi1-x)13 compounds are promising as magnetic refrigerant materials working in relatively low magnetic fields.

本文言語English
ページ(範囲)1276-1278
ページ数3
ジャーナルApplied Physics Letters
81
7
DOI
出版ステータスPublished - 2002 8 12

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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