Theoretical consideration of the stability of an L10 magnetic phase in Fe-(Pd, Pt) alloy clusters

S. Fukami, N. Tanaka

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Size effects on the order-disorder transition of binary alloy clusters, particularly Fe-(Pd, Pt) clusters, are studied theoretically, based on the theory of Bragg and Williams. Including the broken bonds at surfaces (interfaces) of the clusters, the relationship between the degree of order and the cluster size, which has recently been suggested from various experimental studies, is formulated. The dependences of the critical size on the temperature and the order-disorder transformation temperature on the cluster size are derived. There is a slight quantitative disagreement with experiment, but this may be improved by considering some modification of higher-order terms.

本文言語English
ページ(範囲)33-40
ページ数8
ジャーナルPhilosophical Magazine Letters
84
1
DOI
出版ステータスPublished - 2004 1月
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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