Traveling surface spin-wave resonance spectroscopy using surface acoustic waves

Abstract

Coherent gigahertz-frequency surface acoustic waves (SAWs) traveling on the surface of a piezoelectric crystal can, via the magnetoelastic interaction, resonantly excite traveling spin waves in an adjacent thin-film ferromagnet. These excited spin waves, traveling with a definite in-plane wave-vector q enforced by the SAW, can be detected by measuring changes in the electro-acoustical transmission of a SAW delay line. Here, we provide a first demonstration that such measurements constitute a precise and quantitative technique for spin-wave spectroscopy, providing a means to determine both isotropic and anisotropic contributions to the spin-wave dispersion and damping. We demonstrate the effectiveness of this spectroscopic technique by measuring the spin-wave properties of a Ni thin film for a large range of wave vectors,q = 2.5 x 10^4 - 8 x 10^4 cm^(-1), over which anisotropic dipolar interactions vary from being negligible to quite significant.

29 pages with 8 figures

References in corpus (5)

• Spin-Wave Propagation in the Presence of Interfacial Dzyaloshinskii-Moriya Interaction
• Direct observation of the Dzyaloshinskii-Moriya interaction in a Pt/Co/Ni film
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
• Surface acoustic wave driven ferromagnetic resonance in (Ga,Mn)(As,P) epilayers
• Nonreciprocal spin-wave channeling along textures driven by the Dzyaloshinskii-Moriya interaction

Cited by in corpus (30)

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• Large non-reciprocal propagation of surface acoustic waves in epitaxial ferromagnetic/semiconductor hybrid structures
• Voltage driven, local, and efficient excitation of nitrogen-vacancy centers in diamond
• Symmetry of the Magnetoelastic Interaction of Rayleigh and Shear Horizontal Magnetoacoustic Waves in Nickel Thin Films on LiTaO${}_3$
• Phonon Transport Controlled by Ferromagnetic Resonance
• Broadband magnetoelastic coupling in magphonic crystals for high-frequency nanoscale spin wave generation
• The mechanical back-action of a spin-wave resonance in a magnetoelastic thin film on a surface acoustic wave
• Resonant magneto-acoustic switching: influence of Rayleigh wave frequency and wavevector
• Driving magnetization dynamics in an on-demand magnonic crystal by magneto-elastic interaction
• Direct Imaging of Resonant Phonon-Magnon Coupling
• Nonreciprocal magnetoacoustic waves in synthetic antiferromagnets with Dzyaloshinskii-Moriya interaction
• Magnons Parametric Pumping in Bulk Acoustic Waves Resonator
• Coupled mode theory for the acoustic wave and spin wave interaction in the magphonic crystals: Propagating magnetoelastic waves
• Controlling acoustic waves using magnetoelastic Fano resonances
• Impact of Spin Wave Dispersion on Surface Acoustic Wave Velocity
• Spatiotemporal visualization of a surface acoustic wave coupled to magnons across a submillimeter-long sample by pulsed laser interferometry
• Magnon-phonon coupling of synthetic antiferromagnets in a surface acoustic wave cavity resonator
• Energy-efficient spin injector into semiconductors driven by elastic waves
• Symmetry of the coupling between surface acoustic waves and spin waves in synthetic antiferromagnets
• Magnetoelasticity of $\mathrm{C}{\mathrm{o}}_{25}\mathrm{F}{\mathrm{e}}_{75}$ thin films
• Quantitative optical imaging method for surface acoustic waves using optical path modulation
• Magneto Acoustic Spin Hall Oscillators
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• Room And Cryogenic Temperature Behaviour of Magnetic Sensors Based on Gan/Si Single Saw Resonators
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