Phase diagrams of magnetic nanotubes

被引：84

作者：

Escrig, J.

Landeros, P.

Altbir, D.

Vogel, E. E.

Vargas, P.

机构：

[1] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[2] Univ La Frontera, Dept Ciencias Fis, Temuco, Chile

[3] Univ Santiago, USACH, Dept Fis, Santiago, Chile

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 308卷 / 02期

关键词：

magnetic nanotubes; phase diagrams;

D O I：

10.1016/j.jmmm.2006.05.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Analytical expressions for the total magnetic energy of two characteristic internal configurations of nanometric tubes are calculated. A magnetic phase diagram with respect to the aspect ratio of the tubes is obtained which allows a discussion about the possibility of getting ensembles of nanotubes with low coercive fields. A comparison with recently reported coercive fields of three different cobalt nanotube arrays agrees well with the phase diagram derived here. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：233 / 237

页数：5

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