Giant Volume Magnetostriction due to the Itinerant Electron Metamagnetic Transition in La(Fe-Si)13 Compounds

Asaya Fujita, Kazuaki Fukamichi

研究成果: Article

70 引用 (Scopus)

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Ferromagnetic Ln(Fe-4Sii-4)u compounds with xaO.87 show an itinerant metamagnetic transition above the Curie temperature Tc. Since a large volume change of about 1.5% is caused by the transition, the present compounds have a possibility for practical applications as giant magnetostrictive materials. To adjust Tc around room temperature, the effect of the substitution by other magnetic elements on the Curie temperature was examined. The Curie temperature of La(Fe,8gCoJ,Siolî.y)]3 compounds increases with increasing y and the itinerant electron metamagnetic transition appears above Tc. For y=0,03 and 0.04, a huge volume change of 0.6 ~0.9 %, or a linear change of 0.2 - 0.3%, due to the itinerant metamagnetic transition is observed around 250K.

元の言語English
ページ(範囲)3796-3798
ページ数3
ジャーナルIEEE Transactions on Magnetics
35
発行部数5 PART 2
DOI
出版物ステータスPublished - 1999 12 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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