Domain wall propagation in magnetic nanowires by spin-polarized current injection

被引：283

作者：

Vernier, N ^{[1
]}

Allwood, DA ^{[1
]}

Atkinson, D ^{[1
]}

Cooke, MD ^{[1
]}

Cowbu, RP ^{[1
]}

机构：

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

来源：

EUROPHYSICS LETTERS | 2004年 / 65卷 / 04期

关键词：

D O I：

10.1209/epl/i2003-10112-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate movement of a head-to-head domain wall through a magnet nanowire of permalloy (Ni81Fe19) simply by passing an electrical current through the domain wall and without any external magnetic field applied. The effect depends on the sense and magnitude of the electrical current and allows direct propagation of domain walls through complex nanowire shapes, contrary to the case of magnetic-field-induced propagation. The efficiency of this mechanism has been evaluated and the effective force acting on the wall has been found equal to 0.44 x 10(-9) N A(-1).

引用

页码：526 / 532

页数：7

共 29 条

[11]

Ferré J, 2002, TOP APPL PHYS, V83, P127

[12] OBSERVATION OF S-D EXCHANGE FORCE BETWEEN DOMAIN-WALLS AND ELECTRIC-CURRENT IN VERY THIN PERMALLOY-FILMS [J].

FREITAS, PP ;

BERGER, L .

JOURNAL OF APPLIED PHYSICS, 1985, 57 (04) :1266-1269

[13] Pulsed-current-induced domain wall propagation in permalloy patterns observed using magnetic force microscope [J].

Gan, L ;

Chung, SH ;

Aschenbach, KH ;

Dreyer, M ;

Gomez, RD .

IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (05) :3047-3049

[14] Switching a spin valve back and forth by current-induced domain wall motion [J].

Grollier, J ;

Boulenc, P ;

Cros, V ;

Hamzic, A ;

Vaurès, A ;

Fert, A ;

Faini, G .

APPLIED PHYSICS LETTERS, 2003, 83 (03) :509-511

[15] Switching the magnetic configuration of a spin valve by current-induced domain wall motion [J].

Grollier, J ;

Lacour, D ;

Cros, V ;

Hamzic, A ;

Vaurès, A ;

Fert, A ;

Adam, D ;

Faini, G .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (08) :4825-4827

[16] Spin-polarized current induced switching in Co/Cu/Co pillars [J].

Grollier, J ;

Cros, V ;

Hamzic, A ;

George, JM ;

Jaffrès, H ;

Fert, A ;

Faini, G ;

Ben Youssef, J ;

Legall, H .

APPLIED PHYSICS LETTERS, 2001, 78 (23) :3663-3665

[17]

HEIDE C, 2002, PHYS REV B, V63, P6801

[18] 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

[19] Domain wall motion induced by spin polarized currents in ferromagnetic ring structures [J].

Kläui, M ;

Vaz, CAF ;

Bland, JAC ;

Wernsdorfer, W ;

Faini, G ;

Cambril, E ;

Heyderman, LJ .

APPLIED PHYSICS LETTERS, 2003, 83 (01) :105-107

[20] Domain walls in ferromagnetic nanoconstriction [J].

Labaye, Y ;

Berger, L ;

Coey, JMD .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (08) :5341-5346

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