Bimagnetic core/shell FePt/Fe3O4 nanoparticles

被引：505
|
作者：
Zeng, H
Li, J
Wang, ZL
Liu, JP
Sun, SH [1 ]
机构：
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA
[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[3] Univ Texas, Dept Phys, Arlington, TX 76019 USA
来源：
NANO LETTERS | 2004年 / 4卷 / 01期
关键词：
D O I：
10.1021/nl035004r
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Bimagnetic core/shell Fe58Pt42/Fe3O4 nanoparticles are synthesized from high-temperature solution phase coating of 4 nm Fe58Pt42 core with Fe3O4 shell. The shell is tunable from 0.5 to 3 nm. Magnetic properties of the as-synthesized core/shell particles are dependent on shell thickness due to the exchange coupling between core and shell. Upon reductive annealing, an assembly of the core/shell nanoparticles is transformed into a hard magnetic nanocomposite with enhanced energy product.
引用
收藏
页码：187 / 190
页数：4
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