Fourier transform imaging of spin vortex eigenmodes -: art. no. 077207

被引：196

作者：

Buess, M

Höllinger, R

Haug, T

Perzlmaier, K

Krey, U

Pescia, D

Scheinfein, MR

Weiss, D

Back, CH

机构：

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

[2] ETH, Festkorperphys Lab, CH-8093 Zurich, Switzerland

[3] Simon Fraser Univ, Burnaby, BC U5A 156, Canada

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.93.077207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Thin-circular lithographically defined magnetic elements with a spin vortex configuration are excited with a short perpendicular magnetic field pulse. We report the first images of excited magnetic eigenmodes up to third order, obtained by means of a phase sensitive Fourier transform imaging technique. Both axially symmetric and symmetry breaking azimuthal eigenmodes are observed. We observe strong oscillations of the magnetization in the central part of the magnetic elements. The experimental data are in good agreement with micromagnetic simulations.

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页码：077207 / 1

页数：4

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