Presentation Information
[20p-A23-4]Surface acoustic wave-spin wave interactions in magnetic thin films
〇Ryusuke Hisatomi1,2 (1.ICR, Kyoto Univ., 2.CSRN, Kyoto Univ.)
Keywords:
Surface acoustic wave,Spin wave,Magnon-phonon coupling
Rayleigh-type surface acoustic wave (SAW) is a propagating wave on a surface of elastic material. Due to their surface localization, high electrical controllability, and low propagation loss, SAW is used in many classical electrical devices, such as communication equipment and sensors for gases and liquids. The coupling of SAW and spin wave in magnetic thin films on the surface of elastic materials has recently garnered significant attention. The potential for long-distance transmission of spin waves and the intriguing possibility of phonon control by magnetism drive this attention.
It is known that there are several types of coupling between SAW and spin waves. However, their quantitative understanding still needs to be improved. Therefore, we have been working on the following to promote their quantitative understanding: development of optical imaging techniques to obtain spatial information on SAW, separation of multiple SAW-spin wave couplings, and evaluation of magnetoelastic coupling constants. In this talk, we will present this progress and future developments.
It is known that there are several types of coupling between SAW and spin waves. However, their quantitative understanding still needs to be improved. Therefore, we have been working on the following to promote their quantitative understanding: development of optical imaging techniques to obtain spatial information on SAW, separation of multiple SAW-spin wave couplings, and evaluation of magnetoelastic coupling constants. In this talk, we will present this progress and future developments.
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