On low-temperature ordering of FePt nanowires

被引：5

作者：

Wang, Huixin ^{[1
]}

Jia, Erguang ^{[1
]}

Zhang, Lide ^{[2
]}

Li, Lixin ^{[1
]}

Li, Ming ^{[1
]}

机构：

[1] Henan Polytechn Univ, Dept Chem & Phys, Jiaozuo 454000, Peoples R China

[2] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China

来源：

PHYSICS LETTERS A | 2008年 / 372卷 / 35期

关键词：

L10; FePt; anodic alumite film; coercivity; electrodeposition; texture; transformation into ordered phase;

D O I：

10.1016/j.physleta.2008.07.026

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this study, we have fabricated by electrodeposition FePt ordered nanowires through the use of ordered nanopore anodized aluminum oxide templates. The scanning electron microscopy studies show that FePt nanowires about 50 nm in diameter are uniformly embedded into anodic alumina-nanoholes. Nevertheless, as-deposited and annealed in vacuum films exhibit a magnetization much lower than expected. Changes of the annealing atmosphere from vacuum to hydrogen bring about the improvement of the L1(0) FePt properties because of the reduction of Fe oxide in the as-deposited films. The coercivity of 1.8 KOe is achieved by post-annealing at less than 300 degrees C in hydrogen. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：5712 / 5715

页数：4

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