Single domain and vortex state in ferromagnetic circular nanodots

被引：55

作者：

Hoffmann, H ^{[1
]}

Steinbauer, F ^{[1
]}

机构：

[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 92卷 / 09期

关键词：

D O I：

10.1063/1.1510559

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this article, we present an analytical approximation for calculating the magnetic energy in circular nanostructures for the vortex phase (closed magnetic flux) and the single domain phase. Comparing these energies in remanent state lead to a magnetic phase boundary between single domain phase and vortex phase, given by a critical thickness, which depends on the radius of the circular nanostructure. Experimental data and micromagnetic simulations have verified the analytical results. (C) 2002 American Institute of Physics.

引用

页码：5463 / 5467

页数：5

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