Theory of mutual phase locking of spin-torque nanosized oscillators

被引：111

作者：

Slavin, A. N. ^{[1
]}

Tiberkevich, V. S. ^{[1
]}

机构：

[1] Oakland Univ, Dept Phys, Rochester, MI 48309 USA

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.74.104401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A theory of mutual phase locking of a pair of generating magnetic nanocontacts driven by a spin-polarized current is developed using the general theory of coupled nonlinear oscillators. Expressions for the phase-locking band and for the frequency of phase-locked oscillations are derived and compared to result of experiments. It is shown that in typical experiments, where the separation a between the nanocontacts lies in the interval 0.2 < a < 1.5 mu m, the coupling between the nanocontacts leading to the phase-locking effect is mainly caused by propagating spin waves radiating into the common free layer, rather than by the direct magnetodipole interaction.

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页数：4

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