Length dependence of coercivity in CoFe2 nanowire arrays with high aspect ratios

被引：13

作者：

Lim, S. L. ^{[1
]}

Xu, F. ^{[2
]}

Phuoc, N. N. ^{[2
]}

Ong, C. K. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[2] Natl Univ Singapore, Temasek Labs, Singapore 117411, Singapore

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 505卷 / 02期

关键词：

CoFe2; nanowires; AAO template; Magnetostatic interaction; Coercivity; Length dependence; NI NANOWIRES; TEMPERATURE; ANISOTROPY; FE; CO;

D O I：

10.1016/j.jallcom.2010.06.086

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

CoFe2 nanowires with high aspect ratios were electrodeposited into the anodic aluminum oxide (AAO) template. The coercivities and remanence measured along the longitudinal axis of the nanowires are found to increase with the length of nanowires. The magnetostatic interaction between the nanowires is responsible for the decrease of coercivity and remanence of an array of nanowires as compared to an isolated single nanowire. By considering the magnetostatic interaction between the nanowires, a simple model as a function of length is used to calculate the coercivity in an array of the nanowire and this model shows good agreement with experimental data. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：609 / 612

页数：4

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