Synthesis and structure of isolated L10FePt particles

被引：10

作者：

Bian, B ^{[1
]}

Laughlin, DE

Sato, K

Hirotsu, Y

机构：

[1] Carnegie Mellon Univ, Ctr Data Storage Syst, Pittsburgh, PA 15213 USA

[2] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 05期

关键词：

FePt; isolated particles; L1(0)phase; ordering; TEM;

D O I：

10.1109/20.908663

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Isolated FePt particles were fabricated by taking advantage of overgrowth of Fe on Pt particles and subsequent annealing at 873K. The annealing lead to the formation of ordered tetragonal (L1(O)) FePt particles with three orthogonal variants, The average size of FePt particles could be adjusted to less than 10 um and no significant grain coarsening occurred upon annealing due to the existence of an amorphous Al2O3 layer. Nano-beam electron diffraction revealed that the lattice constant ratio c/a was approximately 0.97 for the annealed FePt particles with Fe composition close to 50 at.%.

引用

页码：3021 / 3023

页数：3

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