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

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

Research output: Contribution to journalArticle

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 languageEnglish
Article number233909
JournalJournal of Applied Physics
Volume118
Issue number23
DOIs
Publication statusPublished - 2015 Dec 21
Externally publishedYes

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Permalloys (trademark)
magnons
thin films
microwaves
Joule heating
ferromagnetic resonance
spin dynamics
precession
heating
shift
magnetic fields
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Stability of standing spin wave in permalloy thin film studied by anisotropic magnetoresistance effect. / Yamanoi, Kazuto; Yokotani, Y.; Cui, X.; Yakata, S.; Kimura, T.

In: Journal of Applied Physics, Vol. 118, No. 23, 233909, 21.12.2015.

Research output: Contribution to journalArticle

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