18:30 〜 18:45 ▼ [21p-W241-20] Vortex Spin-Torque Oscillator using Co2(Fe,Mn)Si Heusler Alloys with various Fe-Mn Compositions 〇(DC)Yamamoto Tatsuya1、Seki Takeshi1,2、Takanashi Koki1 (1.IMR, Tohoku Univ.、2.JST-PRESTO)