17:00 〜 17:15 ▼ [14p-C41-14] Drift-induced Modulation of Spin Precession Frequency due to Spin-orbit Interaction Measured by Time-resolved Kerr Rotation Microscopy 〇Takahito Saito1、Asuka Aoki1、Makoto Kohda1,2、Junsaku Nitta1,2 (1.Tohoku Univ.、2.CSRN)