Novel synthesis of FePt nanoparticles and magnetic properties of their self-assembled superlattices

被引:46
作者
Nakaya, M
Tsuchiya, Y
Ito, K
Oumi, Y
Sano, T
Teranishi, T
机构
[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan
[2] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 1858601, Japan
关键词
D O I
10.1246/cl.2004.130
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The novel synthesis of FePt nanoparticle superlattices by polyol reduction of platinum acetylacetonate and iron acetylacetonate is reported. The compositions of FePt nanoparticle are readily controlled, and the particle sizes are not significantly affected by the compositions, retaining to be ca. 3 nm with a very narrow size distribution. The FePt nanoparticles self-assemble into 2-D and 3-D superlattices. Thermal annealing converts the crystal structure of FePt nanoparticle from fcc to L1(0) phase and transforms the superparamagnetic nanoparticle into ferromagnetic one.
引用
收藏
页码:130 / 131
页数:2
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