Boundary conditions for magnetization in magnetic nanoelements

被引：122

作者：

Guslienko, KY

Slavin, AN

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

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

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.72.014463

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that the dynamic magnetization at the edges of a thin magnetic element with a finite lateral size can be described by new effective boundary conditions that take into account inhomogeneous demagnetizing fields near the element edges. These fields play a dominant role in the effective pinning of the dynamic magnetization at the boundaries of mesoscopic- and nanosized magnetic elements. The derived effective boundary conditions generalize well-known Rado-Weertman boundary conditions and are reduced to them in the limiting case of a very thin magnetic element.

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页数：5

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