Preparation and magnetic behavior of arrays of electrodeposited Co nanowires

被引：71

作者：

Rivas, J ^{[1
]}

Bantu, AKM

Zaragoza, G

Blanco, MC

López-Quintela, MA

机构：

[1] Univ Santiago de Compostela, Dept Appl Phys, E-15782 Santiago De Compostela, Spain

[2] Univ Santiago de Compostela, Dept Phys Chem, E-15782 Santiago De Compostela, Spain

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 249卷 / 1-2期

关键词：

arrays of Co nanowires; magnetocrystalline anisotropy; magnetic dipolar interactions;

D O I：

10.1016/S0304-8853(02)00534-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cobalt nanowires have been synthesized by electrodeposition into porous track-etched polycarbonate membranes with a quoted pore diameter of Dp approximate to 200-400nm and a thickness of L approximate to 7mum. Magnetization curves and torque experiments of arrays of Co wires confirm that when the lengths of the wires are increased a crossover takes place from a parallel easy direction of magnetization towards an easy direction perpendicular to the axis of the wire. This change in the easy direction of magnetization is analyzed considering the competition between demagnetizing field, magnetocrystalline anisotropy, and dipolar interaction among wires. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：220 / 227

页数：8

共 27 条

[1]

Bantu AKM, 2001, J NON-CRYST SOLIDS, V287, P5, DOI 10.1016/S0022-3093(01)00531-2

[2] 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

[3]

BOZORTH RM, 1994, FERROMAGNETISM, P867

[4] Patterned magnetic nanostructures and quantized magnetic disks [J].

Chou, SY .

PROCEEDINGS OF THE IEEE, 1997, 85 (04) :652-671

[5]

CULLITY BD, 1972, INTRO MAGNETIC MAT, P216

[6] THE EFFECTS OF DIFFERENT DEMAGNETIZATION PROCESSES ON INTERACTION EFFECTS IN THIN-FILM MEDIA [J].

ELHILO, M ;

OGRADY, K ;

MAYO, PI ;

CHANTRELL, RW ;

SANDERS, IL ;

HOWARD, JK .

IEEE TRANSACTIONS ON MAGNETICS, 1992, 28 (05) :3282-3284

[7] Magnetization processes in nickel and cobalt electrodeposited nanowires [J].

Ferre, R ;

Ounadjela, K ;

George, JM ;

Piraux, L ;

Dubois, S .

PHYSICAL REVIEW B, 1997, 56 (21) :14066-14075

[8] Magnetic nanowires [J].

Fert, A ;

Piraux, L .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) :338-358

[9] Magnetic behavior of an array of cobalt nanowires [J].

García, JM ;

Asenjo, A ;

Velázquez, J ;

García, D ;

Vázquez, M ;

Aranda, P ;

Ruiz-Hitzky, E .

JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) :5480-5482

[10] Magnetic anisotropies in dot arrays: Shape anisotropy versus coupling [J].

Grimsditch, M ;

Jaccard, Y ;

Schuller, IK .

PHYSICAL REVIEW B, 1998, 58 (17) :11539-11543

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