Electrical detection of vortex states in a ferromagnetic disk using the rectifying effect

M. Goto; H. Hata; A. Yamaguchi; Y. Nakatani; T. Yamaoka; Y. Nozaki

doi:10.1063/1.3536390

Electrical detection of vortex states in a ferromagnetic disk using the rectifying effect

M. Goto, H. Hata, A. Yamaguchi, Y. Nakatani, T. Yamaoka, Y. Nozaki

Department of Physics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

A magnetic vortex core confined in a micron-scale magnetic disk is resonantly excited by both spin-polarized rf current and rf field. We found that rectifying voltage spectra caused by the resonance of vortex core are dependent not only on the core polarity, but also the chirality. These experimental results can be explained by analytically calculating the anisotropic magnetoresistance effect induced by the motion of the vortex core.

Original language	English
Article number	07D306
Journal	Journal of Applied Physics
Volume	109
Issue number	7
DOIs	https://doi.org/10.1063/1.3536390
Publication status	Published - 2011 Apr 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3536390

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abstract = "A magnetic vortex core confined in a micron-scale magnetic disk is resonantly excited by both spin-polarized rf current and rf field. We found that rectifying voltage spectra caused by the resonance of vortex core are dependent not only on the core polarity, but also the chirality. These experimental results can be explained by analytically calculating the anisotropic magnetoresistance effect induced by the motion of the vortex core.",

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AU - Goto, M.

AU - Hata, H.

AU - Yamaguchi, A.

AU - Nakatani, Y.

AU - Yamaoka, T.

AU - Nozaki, Y.

PY - 2011/4/1

Y1 - 2011/4/1

N2 - A magnetic vortex core confined in a micron-scale magnetic disk is resonantly excited by both spin-polarized rf current and rf field. We found that rectifying voltage spectra caused by the resonance of vortex core are dependent not only on the core polarity, but also the chirality. These experimental results can be explained by analytically calculating the anisotropic magnetoresistance effect induced by the motion of the vortex core.

AB - A magnetic vortex core confined in a micron-scale magnetic disk is resonantly excited by both spin-polarized rf current and rf field. We found that rectifying voltage spectra caused by the resonance of vortex core are dependent not only on the core polarity, but also the chirality. These experimental results can be explained by analytically calculating the anisotropic magnetoresistance effect induced by the motion of the vortex core.

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Electrical detection of vortex states in a ferromagnetic disk using the rectifying effect

Abstract

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