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DOE OSTI · 1633308

Phonon Transport Controlled by Ferromagnetic Resonance

Zhao, Chenbo·Li, Yi·Zhang, Zhizhi·Vogel, Michael·Pearson, John E.·Wang, Jianbo·Zhang, Wei·Novosad, Valentine·Liu, Qingfang·Hoffmann, Axel
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Abstract

The resonant coupling of phonons and magnons is important for the interconversion of phononic and spin degrees of freedom. We study the phonon transmission in LiNbO 3 manipulated by the dynamic magnetization in a Ni thin film. It is observed that the phonons can be absorbed strongly through resonant magnon-phonon coupling, which is realized by our modifying the magnon-phonon coupling within the Ni itself as well as our optimizing the interfacial coupling between Ni and LiNbO 3 . The line shapes of phonon transmission are further investigated considering the magnon-phonon interconversion in the elastically driven ferromagnetic resonance process. The results promote unique routes for phonon manipulation and detection in the presence of magnetization dynamics.

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75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITYFerromagnetic resonanceMagnetoacoustic effectMagnonsPhononsPiezoelectricitySpintronicsSurface acoustic waveTransition-metal oxides

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Zhao, Chenbo, Li, Yi, Zhang, Zhizhi, Vogel, Michael, Pearson, John E., Wang, Jianbo, Zhang, Wei, Novosad, Valentine, Liu, Qingfang, Hoffmann, Axel. 2020-05-13. Phonon Transport Controlled by Ferromagnetic Resonance. https://doi.org/10.1103/physrevapplied.13.054032

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