Geometry dependence of coercivity in Ni nanowire arrays

被引：108

作者：

Escrig, J. ^{[1
]}

Lavin, R. ^{[1
]}

Palma, J. L. ^{[1
]}

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

Altbir, D. ^{[1
]}

Cortes, A. ^{[2
]}

Gomez, H. ^{[2
]}

机构：

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

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

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 07期

关键词：

D O I：

10.1088/0957-4484/19/7/075713

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Magnetic properties of arrays of nanowires produced inside the pores of anodic alumina membranes have been studied by means of vibrating sample magnetometer techniques. In these systems the length of the wires strongly influences the coercivity of the array. A simple model for the coercivity as a function of the geometry is presented which exhibits good agreement with experimental results. Magnetostatic interactions between the wires are responsible for a decrease of the coercive field.

引用

页数：6

共 40 条

[1] Magnetostatic interactions and magnetization reversal in ferromagnetic wires [J].

Adeyeye, AO ;

Bland, JAC ;

Daboo, C ;

Hasko, DG .

PHYSICAL REVIEW B, 1997, 56 (06) :3265-3270

[2] Angular dependence of nucleation by curling in a prolate spheroid [J].

Aharoni, A .

JOURNAL OF APPLIED PHYSICS, 1997, 82 (03) :1281-1287

[3] Granular Cu-Co alloys as interacting superparamagnets [J].

Allia, P ;

Coisson, M ;

Tiberto, P ;

Vinai, F ;

Knobel, M ;

Novak, MA ;

Nunes, WC .

PHYSICAL REVIEW B, 2001, 64 (14) :1444201-14442012

[4] Ordered iron oxide nanotube arrays of controlled geometry and tunable magnetism by atomic layer deposition [J].

Bachmann, Julien ;

Jing, Jing ;

Knez, Mato ;

Barth, Sven ;

Shen, Hao ;

Mathur, Sanjay ;

Goesele, Ulrich ;

Nielsch, Kornelius .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (31) :9554-+

[5] Reversal modes in arrays of interacting magnetic Ni nanowires: Monte Carlo simulations and scaling technique [J].

Bahiana, M. ;

Amaral, F. S. ;

Allende, S. ;

Altbir, D. .

PHYSICAL REVIEW B, 2006, 74 (17)

[6] Structure and magnetic properties of electrodeposited cobalt nanowires [J].

Bantu, AKM ;

Rivas, J ;

Zaragoza, G ;

López-Quintela, MA ;

Blanco, MC .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (06) :3393-3397

[7]

BELEGGIA M, 2004, J MAGN MAGN MATER, V272, pE1

[8]

CORTES A, 2007, UNPUB

[9] Single-domain circular nanomagnets [J].

Cowburn, RP ;

Koltsov, DK ;

Adeyeye, AO ;

Welland, ME ;

Tricker, DM .

PHYSICAL REVIEW LETTERS, 1999, 83 (05) :1042-1045

[10] Magnetic properties of bi-phase micro- and nanotubes [J].

Escrig, J. ;

Altbir, D. ;

Nielsch, K. .

NANOTECHNOLOGY, 2007, 18 (22)

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