Boundary conditions for magnetization in magnetic nano-elements

Details Boundary conditions for magnetization in magnetic nano-elements Boundary conditions for magnetization in magnetic nano-elements

2005-03-31

arxiv.org/abs/cond-mat/0503745v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.72.014463

We show that the dynamic magnetization at the edges of a thin magnetic element with 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 nano-sized 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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