Micromagnetic simulations of magnetic normal modes in elliptical nanomagnets with a vortex state
作者： Gang Lv , Hong Zhang , Xuecheng Cao , Feng Gao , Yaowen Liu
DOI: 10.1063/1.4850537
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摘要: Combined methods of micromagnetic simulation and Fourier analysis are employed to study the gyrotropic magnetic excitations triggered by a short in-plane Gaussian field pulse in ellipse-shaped Permalloy elements with vortex state. We observed series vortex-core azimuthal normal modes. The frequency mode increases element thickness up 40 nm, then dip appears for varying from 40 60 nm.
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