Magnetic properties of arrays of nanowires: Anisotropy, interactions, and reversal modes

被引：29

作者：

Lavin, R. ^{[1
,2
,3
]}

Denardin, J. C. ^{[1
,3
]}

Espejo, A. P. ^{[1
]}

Cortes, A. ^{[4
]}

Gomez, H. ^{[5
]}

机构：

[1] Univ Santiago Chile, Dept Fis, Santiago 9170124, Chile

[2] Univ Diego Portales, Fac Ingn, Santiago 8370191, Chile

[3] Ctr Desarrollo Nanociencia & Nanotecnol CEDENNA, Santiago 9170124, Chile

[4] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso 2390123, Chile

[5] Pontificia Univ Catolica Valparaiso, Fac Ciencias, Inst Quim, Valparaiso 2340025, Chile

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 09期

关键词：

ANGULAR-DEPENDENCE; NICKEL NANOWIRES; TRANSVERSE;

D O I：

10.1063/1.3350905

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Arrays of Co and Ni nanowires of different lengths have been prepared by electrodeposition into nanopores of alumina membranes. The dependence of the coercivity of the arrays as a function of temperature and measurement angle of the nanowires has been measured. A simple model is presented in order to explain the behavior of the magnetic properties as a function of the angle of measurement. The analytical calculations show that while for Ni nanowires demagnetization reversal in the array is driven by means of the nucleation and propagation of a transverse wall, in Co arrays the reversal mode changes from curling to coherent when the angle of measurements changes. (C) 2010 American Institute of Physics. [doi:10.1063/1.3350905]

引用

页数：3

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