[18p-PB1-1~84] 10 スピントロニクス・マグネティクス（ポスター）

▲ [18p-PB1-19] Snell’s law for isotropically propagating spin wave

〇Tian Li¹、Takuya Taniguchi²、Yoichi Shiota¹、Takahiro Moriyama¹、Teruo Ono^1,3 (1.Kyoto Univ.、2.Tech.Univ. of Munich、3.Osaka Univ.)

キーワード：Spin wave

Control of spin wave (SW) propagation is one of crucial tasks in magnonics. As one of the important properties of the propagation, refraction of magnetostatic surface spin wave (MSSW) has been investigated. However, MSSW has anisotropic dispersion relation and it should be taken into count the angle dependent wave vector of SW. Such anisotropic Snell’s law requires complex calculation and it is not easy to apply techniques grown in optics. Regarding the dispersion relation of SW considering exchange interaction and dipole-dipole interaction, SWs propagating in-plane with out-of-plane magnetization propagate isotropically. In this study, we performed a simulation to investigate Snell's law for both MSFVW and isotropically propagating dipole-exchange SW.