Symmetry of the Magnetoelastic Interaction of Rayleigh and Shear Horizontal Magnetoacoustic Waves in Nickel Thin Films on LiTaO${}_3$

Abstract

We study the interaction of Rayleigh and shear horizontal surface acoustic waves (SAWs) with spin waves in thin Ni films on a piezoelectric LiTaO${}_3$ substrate, which supports both SAW modes simultaneously. Because Rayleigh and shear horizontal modes induce different strain components in the Ni thin films, the symmetries of the magnetoelastic driving fields, of the magnetoelastic response, and of the transmission nonreciprocity differ for both SAW modes. Our experimental findings are well explained by a theoretical model based on a modified Landau--Lifshitz--Gilbert approach. We show that the symmetries of the magnetoelastic response driven by Rayleigh- and shear horizontal SAWs complement each other, which makes it possible to excite spin waves for any relative orientation of magnetization and SAW propagation direction and, moreover, can be utilized to characterize surface strain components of unknown acoustic wave modes.

arXiv comment7 pages, 7 figures

References in corpus (13)

• Acoustically driven ferromagnetic resonance
• Surface Acoustic Wave-Driven Ferromagnetic Resonance in Nickel Thin Films: Theory and Experiment
• Nonreciprocal surface acoustic wave propagation via magneto-rotation coupling
• Dynamic modulation of photonic crystal nanocavities using gigahertz acoustic phonons
• Mechanical generation of spin current by spin-rotation coupling
• Nonreciprocal propagation of surface acoustic wave in Ni/LiNbO3
• Effects of mechanical rotation on spin currents
• Nonreciprocal Dzyaloshinskii-Moriya magnetoacoustic waves
• Traveling surface spin-wave resonance spectroscopy using surface acoustic waves
• Generation and imaging of magnetoacoustic waves over millimetre distances
• Large non-reciprocal propagation of surface acoustic waves in epitaxial ferromagnetic/semiconductor hybrid structures
• Surface acoustic wave unidirectional transducers for quantum applications
• Giant magnetoelastic coupling in Love acoustic waveguide based on uniaxial multilayered TbCo2/FeCo nanostructured thin film on Quartz ST-cut

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• Generation of gigahertz frequency surface acoustic waves in YIG/ZnO heterostructures
• Forward volume magnetoacoustic spin wave excitation with micron-scale spatial resolution
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• Imaging GHz surface acoustic wave modes in electrostricted LaAlO${}_3$/SrTiO${}_3$ heterostructures