Formation of octahedral FePt nanoparticles by alternate deposition of FePt and MgO

T. Shima, K. Takanashi, Y. K. Takahashi, K. Hono

研究成果: Review article査読

46 被引用数 (Scopus)

抄録

Two-dimensional assemblies of octahedral-shaped FePt nanoparticles embedded in a MgO matrix were formed by alternate deposition of FePt and MgO layers on MgO (001) single-crystal substrates with a thermal cycling process. Highly ordered L 10 structure with the [001] orientation perpendicular to the plane and large coercivity of more than 60 kOe were obtained. Cross-sectional transmission electron microscopy observation revealed that the equilibrium crystal shape of L 10 ordered FePt particles was octahedral structure due to the anisotropy of the surface energy. The {111} plane shows the minimum surface energy in the L 10 structure, which is similar to the case of face-centered-cubic structure.

本文言語English
論文番号063117
ジャーナルApplied Physics Letters
88
6
DOI
出版ステータスPublished - 2006 2
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

フィンガープリント

「Formation of octahedral FePt nanoparticles by alternate deposition of FePt and MgO」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル