Stability of standing spin wave in permalloy thin film studied by anisotropic magnetoresistance effect

K. Yamanoi; Y. Yokotani; X. Cui; S. Yakata; T. Kimura

doi:10.1063/1.4937918

Stability of standing spin wave in permalloy thin film studied by anisotropic magnetoresistance effect

K. Yamanoi, Y. Yokotani, X. Cui, S. Yakata, T. Kimura

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

Abstract

We have investigated the stability for the resonant spin precession under the strong microwave magnetic field by a specially developed detection method using the anisotropic magnetoresistance effect. The electrically separated excitation and detection circuits enable us to investigate the influence of the heating effect and the nonuniform spin dynamics independently. The large detecting current is found to induce the field shift of the resonant spectra because of the Joule heating. From the microwave power dependence, we found that the linear response regime for the standing spin wave is larger than that for the ferromagnetic resonance. This robust characteristic of the standing spin wave is an important advantage for the high power operation of the spin-wave device.

Original language	English
Article number	233909
Journal	Journal of Applied Physics
Volume	118
Issue number	23
DOIs	https://doi.org/10.1063/1.4937918
Publication status	Published - 2015 Dec 21
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.4937918

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abstract = "We have investigated the stability for the resonant spin precession under the strong microwave magnetic field by a specially developed detection method using the anisotropic magnetoresistance effect. The electrically separated excitation and detection circuits enable us to investigate the influence of the heating effect and the nonuniform spin dynamics independently. The large detecting current is found to induce the field shift of the resonant spectra because of the Joule heating. From the microwave power dependence, we found that the linear response regime for the standing spin wave is larger than that for the ferromagnetic resonance. This robust characteristic of the standing spin wave is an important advantage for the high power operation of the spin-wave device.",

author = "K. Yamanoi and Y. Yokotani and X. Cui and S. Yakata and T. Kimura",

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T1 - Stability of standing spin wave in permalloy thin film studied by anisotropic magnetoresistance effect

AU - Yamanoi, K.

AU - Yokotani, Y.

AU - Cui, X.

AU - Yakata, S.

AU - Kimura, T.

PY - 2015/12/21

Y1 - 2015/12/21

N2 - We have investigated the stability for the resonant spin precession under the strong microwave magnetic field by a specially developed detection method using the anisotropic magnetoresistance effect. The electrically separated excitation and detection circuits enable us to investigate the influence of the heating effect and the nonuniform spin dynamics independently. The large detecting current is found to induce the field shift of the resonant spectra because of the Joule heating. From the microwave power dependence, we found that the linear response regime for the standing spin wave is larger than that for the ferromagnetic resonance. This robust characteristic of the standing spin wave is an important advantage for the high power operation of the spin-wave device.

AB - We have investigated the stability for the resonant spin precession under the strong microwave magnetic field by a specially developed detection method using the anisotropic magnetoresistance effect. The electrically separated excitation and detection circuits enable us to investigate the influence of the heating effect and the nonuniform spin dynamics independently. The large detecting current is found to induce the field shift of the resonant spectra because of the Joule heating. From the microwave power dependence, we found that the linear response regime for the standing spin wave is larger than that for the ferromagnetic resonance. This robust characteristic of the standing spin wave is an important advantage for the high power operation of the spin-wave device.

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Stability of standing spin wave in permalloy thin film studied by anisotropic magnetoresistance effect

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