Probing antiferromagnetic coupling between nanomagnets

被引：86

作者：

Cowburn, RP ^{[1
]}

机构：

[1] Univ Durham, Dept Phys, Sci Labs, Durham DH1 3LE, England

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.65.092409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have performed an experimental study into magnetostatic coupling between Permalloy nanomagnets arranged in linear chains. By engineering the anisotropy of each nanomagnet, the nanomagnets can be forced to couple in an anti ferromagnetic arrangement. Using an experimental method, we show that the antiferromagnetic coupling is perfect for the first four nanomagnets in the chain, but thereafter phase defects arise. Differences between the information transmission capability of ferromagnetic coupling and anti ferromagnetic coupling are discussed.

引用

页码：1 / 4

页数：4

共 14 条

[1] Magnetization reversal in arrays of perpendicularly magnetized ultrathin dots coupled by dipolar interaction [J].

Aign, T ;

Meyer, P ;

Lemerle, S ;

Jamet, JP ;

Ferré, J ;

Mathet, V ;

Chappert, C ;

Gierak, J ;

Vieu, C ;

Rousseaux, F ;

Launois, H ;

Bernas, H .

PHYSICAL REVIEW LETTERS, 1998, 81 (25) :5656-5659

[2] Thermally activated relaxation time of a single domain ferromagnetic particle subjected to a uniform field at an oblique angle to the easy axis: Comparison with experimental observations [J].

Coffey, WT ;

Crothers, DSF ;

Dormann, JL ;

Kalmykov, YP ;

Kennedy, EC ;

Wernsdorfer, W .

PHYSICAL REVIEW LETTERS, 1998, 80 (25) :5655-5658

[3] Configurational anisotropy in nanomagnets [J].

Cowburn, RP ;

Adeyeye, AO ;

Welland, ME .

PHYSICAL REVIEW LETTERS, 1998, 81 (24) :5414-5417

[4] Probing submicron nanomagnets by magneto-optics [J].

Cowburn, RP ;

Koltsov, DK ;

Adeyeye, AO ;

Welland, ME .

APPLIED PHYSICS LETTERS, 1998, 73 (26) :3947-3949

[5] Room temperature magnetic quantum cellular automata [J].

Cowburn, RP ;

Welland, ME .

SCIENCE, 2000, 287 (5457) :1466-1468

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

Cowburn, RP ;

Koltsov, DK ;

Adeyeye, AO ;

Welland, ME ;

Tricker, DM .

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

[7] Property variation with shape in magnetic nanoelements [J].

Cowburn, RP .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2000, 33 (01) :R1-R16

[8] Spin accumulation and domain wall magnetoresistance in 35 nm Co wires [J].

Ebels, U ;

Radulescu, A ;

Henry, Y ;

Piraux, L ;

Ounadjela, K .

PHYSICAL REVIEW LETTERS, 2000, 84 (05) :983-986

[9] Current-driven magnetization reversal and spin-wave excitations in Co/Cu/Co pillars [J].

Katine, JA ;

Albert, FJ ;

Buhrman, RA ;

Myers, EB ;

Ralph, DC .

PHYSICAL REVIEW LETTERS, 2000, 84 (14) :3149-3152

[10] Interactions and switching field distributions of nanoscale magnetic elements [J].

Kirk, KJ ;

Chapman, JN ;

McVitie, S ;

Aitchison, PR ;

Wilkinson, CDW .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :5105-5107

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