Numerical analysis of inductive detection of magnetic vortex motion excited with circularly polarized field

Numerical analysis of inductive detection of magnetic vortex motion excited with circularly polarized field

In the present study, the rotation and switching of a vortex core in submicron-size square dots were numerically analyzed by micromagnetic simulation. This study clarified that the eigenfrequency of the vortex core is strongly dependent on the magnetostatic energy and that rapid switching can be rea...

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Veröffentlicht in:Japanese Journal of Applied Physics 2016-07, Vol.55 (7S3), p.7-07ME02
Hauptverfasser: Ya, Xiaorui, Tanaka, Terumitsu, Matsuyama, Kimihide
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Sprache:eng
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Amplitudes
Circularity
Computer simulation
Eigenfrequencies
Fluid flow
Polarity
Switching
Vortices
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container_title Japanese Journal of Applied Physics
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creator Ya, Xiaorui
Tanaka, Terumitsu
Matsuyama, Kimihide
description In the present study, the rotation and switching of a vortex core in submicron-size square dots were numerically analyzed by micromagnetic simulation. This study clarified that the eigenfrequency of the vortex core is strongly dependent on the magnetostatic energy and that rapid switching can be realized by circularly polarized fields with practical amplitudes at the corresponding eigenfrequency. The inductive detection of vortex core rotation, which can distinguish vortex core polarity, was successfully demonstrated and the structural design of the detector was optimized.
doi_str_mv 10.7567/JJAP.55.07ME02
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source Institute of Physics Journals; Institute of Physics (IOP) Journals - HEAL-Link
subjects Amplitudes
Circularity
Computer simulation
Eigenfrequencies
Fluid flow
Polarity
Switching
Vortices
title Numerical analysis of inductive detection of magnetic vortex motion excited with circularly polarized field
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