Temperature dependence of magnetization reversal in Co and Fe3O4 nanowire arrays

被引：17

作者：

Kazakova, O

Erts, D

Crowley, TA

Kulkarni, JS

Holmes, JD

机构：

[1] Natl Phys Lab, Teddington TW11 0LW, Middx, England

[2] Latvian State Univ, LV-1063 Riga, Latvia

[3] Natl Univ Ireland Univ Coll Cork, Dept Chem, Mat Sect, Cork, Ireland

[4] Natl Univ Ireland Univ Coll Cork, Dept Chem, Supercrit Fluid Ctr, Cork, Ireland

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 286卷

关键词：

nanowires; magnetization reversal; FCC cobalt; magnetite;

D O I：

10.1016/j.jmmm.2004.09.128

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we investigate the magnetization reversal of cobalt and magnetite nanowires, 4nm in diameter, synthesized within the pores of mesoporous silica thin films. A SQUID magnetometer was used to study the magnetic properties of the nanowire arrays over a broad temperature interval, T= 1.8-300K. The magnetization reversal process was found to be strongly temperature dependent. While a coherent rotation may occur at room temperature, a process involving the formation of domain structures takes place as the temperature decreases down to 1.8K. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：171 / 176

页数：6

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