Phase locking dynamics of dipolarly coupled vortex-based spin transfer oscillators

被引：80

作者：

Belanovsky, A. D. ^{[1
]}

Locatelli, N. ^{[2
,3
]}

Skirdkov, P. N. ^{[1
]}

Araujo, F. Abreu ^{[4
]}

Grollier, J. ^{[2
,3
]}

Zvezdin, K. A. ^{[1
,5
]}

Cros, V. ^{[2
,3
]}

Zvezdin, A. K. ^{[1
]}

机构：

[1] RAS, AM Prokhorov Gen Phys Inst, Moscow 119991, Russia

[2] Univ Paris 11, F-91405 Orsay, France

[3] Unite Mixte Phys CNRS Thales, F-91767 Palaiseau, France

[4] Catholic Univ Louvain, B-1348 Louvain, Belgium

[5] Ist PM Srl, I-10138 Turin, Italy

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 10期

关键词：

MAGNETIC VORTEX; STATE STABILITY; VORTICES; DRIVEN;

D O I：

10.1103/PhysRevB.85.100409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phase locking dynamics of dipolarly coupled vortices excited by spin-polarized current in two identical nanopillars is studied as a function of the interpillar distance L. Numerical study and an analytical model have proved the remarkable efficiency of magnetostatic interaction in achieving phase locking. Investigating the dynamics in the transient regime toward phase locking, we extract the evolution of the locking time tau, the coupling strength mu, and the interaction energy W. Finally, we compare this coupling energy with the one obtained by a simple model.

引用

页数：4

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