Mode-tunable magnon-phonon interaction in a phononic crystal cavity magnomechanics

Daiki Hatanaka; Motoki Asano; Hajime Okamoto; Hiroshi Yamaguchi

Presentation information

Oral presentation

10 Spintronics and Magnetics » 10.2 Fundamental and exploratory device technologies for spin

[16p-D419-1~18] 10.2 Fundamental and exploratory device technologies for spin

Thu. Mar 16, 2023 1:30 PM - 6:30 PM D419 (Building No. 11)

Kihiro Yamada(Tokyo Tech.), Weinan Zhou(NIMS), Takumi Yamazaki(Tohoku Univ.)

3:15 PM - 3:30 PM

[16p-D419-7] Mode-tunable magnon-phonon interaction in a phononic crystal cavity magnomechanics

〇Daiki Hatanaka¹, Motoki Asano¹, Hajime Okamoto¹, Hiroshi Yamaguchi¹ (1.NTT-BRL)

Keywords:phononic crystal, magnon, ferromagnetic resonance

A phononic crystal cavity sustains multiple acoustic resonances with various vibrational strain distributions. In this presentation, we investigated the effect of the strain profiles on magnetoelastic effect governing interaction between ferromagnetic magnons and acoustic phonons. We found that longitudinal- and shear-strain dominant cavity resonances show different magnetic susceptibility to the magnetoelastic effect.