Nonstationary current-driven dynamics of vortex domain walls in films with in-plane anisotropy

被引：0

作者：

Dubovik, M. N. ^{[1
,2
]}

Filippov, B. N. ^{[1
]}

Korzunin, L. G. ^{[1
]}

机构：

[1] Inst Met Phys UB RAS, S Kovalevskoy Str 18, Ekaterinburg 620990, Russia

[2] Ural Fed Univ, Mira Str 19, Ekaterinburg 620002, Russia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2017年 / 424卷

关键词：

Domain walls dynamics; Spin-polarized current; Nonstationary domain wall motion; SPIN-POLARIZED CURRENTS; MAGNETIC-FILMS; MOTION; SIMULATION; VELOCITY;

D O I：

10.1016/j.jmmm.2016.10.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Micromagnetic simulation of a current-driven vortex domain wall motion in a film with in-plane anisotropy was carried out. The current density values j > j(c) were considered corresponding to the nonstationary motion, with the domain wall structure dynamic transformation occurred. A nonlinear dependence of the j(c) value on the film thickness was obtained. The nonstationary motion regime existence restricted the possibility to increase the domain wall velocity by increasing j and decreasing the damping parameter.

引用

页码：238 / 244

页数：7

共 37 条

[1] Magnetic domain-wall logic [J].

Allwood, DA ;

Xiong, G ;

Faulkner, CC ;

Atkinson, D ;

Petit, D ;

Cowburn, RP .

SCIENCE, 2005, 309 (5741) :1688-1692

[2] Nonlinear domain-wall velocity enhancement by spin-polarized electric current [J].

Beach, G. S. D. ;

Knutson, C. ;

Nistor, C. ;

Tsoi, M. ;

Erskine, J. L. .

PHYSICAL REVIEW LETTERS, 2006, 97 (05)

[3]

Bonte A. L., 1969, J APPL PHYS, V40, P2450

[4]

Bozorth R.M., 1993, Ferromagnetism

[5]

Brown W. F., 1963, Micromagnetics

[6] Nonlinear dynamics of domain walls with cross-ties [J].

Dubovik, M. N. ;

Zverev, V. V. ;

Filippov, B. N. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2016, 123 (01) :108-118

[7] Spin polarized current controlled dynamics of domain walls in magnetic films with in-plane anisotropy [J].

Filippov, B. N. ;

Dubovik, M. N. ;

Korzunin, L. G. .

TECHNICAL PHYSICS, 2016, 61 (06) :904-912

[8] Static properties and nonlinear dynamics of domain walls with a vortexlike internal structure in magnetic films (Review) [J].

Filippov, BN .

LOW TEMPERATURE PHYSICS, 2002, 28 (10) :707-738

[9] 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

[10] Current-controlled magnetic domain-wall nanowire shift register [J].

Hayashi, Masamitsu ;

Thomas, Luc ;

Moriya, Rai ;

Rettner, Charles ;

Parkin, Stuart S. P. .

SCIENCE, 2008, 320 (5873) :209-211

← 1 2 3 4 →