Nonlinear Propagation of Spin Waves in Microscopic Magnetic Stripes

被引：53

作者：

Demidov, V. E. ^{[1
]}

Jersch, J. ^{[1
]}

Rott, K. ^{[2
]}

Krzysteczko, P. ^{[2
]}

Reiss, G. ^{[2
]}

Demokritov, S. O. ^{[1
]}

机构：

[1] Univ Munster, Inst Appl Phys, D-48149 Munster, Germany

[2] Univ Bielefeld, Dept Phys, D-33501 Bielefeld, Germany

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 17期

关键词：

MODES;

D O I：

10.1103/PhysRevLett.102.177207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied experimentally with high spatial and temporal resolution propagation of intense spin waves in microscopic Permalloy stripes. We show that the nonlinearity of the spin system of metallic magnetic films together with microscopic-scale confinement effects lead to an anomalous nonlinear magnetic dynamics, such as a nonlinear spatial self-modulation of spin waves characterized by the repulsive nonlinearity. This phenomenon appears to be densely connected with the nonlinear damping in the system. We find that both of these effects develop synchronously on the nanosecond temporal scale.

引用

页数：4

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