Excitations of nonlinear ferromagentic resonance and standing spin wave using inhomogenous high-power RF magnetic field

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The resonant precession of the magnetizations such as the ferromagnetic resonance (FMR) and spin wave (SW) excitation is unique and attractive property of the ferromagnetic thin film for future applications in nano-electric and telecommunication devices. Especially, after establishing the concept of the spin current, the considerable attention has been paid to such spin dynamics. Moreover, the oscillation amplitude in such resonant spin motion is found to show the nonlinear responses under the high power excitation. These fascinating properties may open novel functional spintronic devices such as spin current amplifier and neuromophic operation. However, experimental difficulties and complicated spatial spin distribution make it difficult to understand the related phenomena deeply. In this presentation, we show that nonlinear responses for the FMR and the surface SW in a Permalloy strip can be simply excited by the application of non-uniform RF magnetic field with high amplitude.

Original languageEnglish
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973224
DOIs
Publication statusPublished - 2015 Jul 14
Externally publishedYes
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
Duration: 2015 May 112015 May 15

Publication series

Name2015 IEEE International Magnetics Conference, INTERMAG 2015

Conference

Conference2015 IEEE International Magnetics Conference, INTERMAG 2015
CountryChina
CityBeijing
Period15/5/1115/5/15

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Yokotani, Y., Yamanoi, K., Yakata, S., & Kimura, T. (2015). Excitations of nonlinear ferromagentic resonance and standing spin wave using inhomogenous high-power RF magnetic field. In 2015 IEEE International Magnetics Conference, INTERMAG 2015 [7156973] (2015 IEEE International Magnetics Conference, INTERMAG 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2015.7156973