[16p-D419-1~18] 10.2 スピン基盤技術・萌芽的デバイス技術

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

〇畑中 大樹¹、浅野 元紀¹、岡本 創¹、山口 浩司¹ (1.NTT物性研)

キーワード：フォノニック結晶、マグノン、強磁性共鳴

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.