Size-dependent chemical and magnetic ordering in L10-FePt nanoparticles

被引：307

作者：

Rong, Chuan-bing

Li, Daren

Nandwana, Vikas

Poudyal, Narayan

Ding, Yong

Wang, Zhong Lin

Zeng, Hao

Liu, J. Ping

机构：

[1] Univ Texas, Dept Phys, Arlington, TX 76019 USA

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[3] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA

来源：

ADVANCED MATERIALS | 2006年 / 18卷 / 22期

关键词：

D O I：

10.1002/adma.200601904

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

MeCL evidence for size-dependent chemical and magnetic ordering in L1(0)-FePt nanoparticles is obtained by measuring monodisperse nanoparticles prepared by the "salt-matrix annealing" technique. Quantitative correlations show that the long-range chemicalordering parameter, Curie temperature (see figure), and saturated magnetization drop significantly with decreasing particle size.

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页码：2984 / +

页数：6

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