[13p-P8-1~46] 10 スピントロニクス・マグネティクス(ポスター)

▲ [13p-P8-36] X-ray spectroscopy of Pt and Bi atomic layers on Fe(001) under external voltage

〇(M1)Takuya Tsukahara¹、Miyakaze Risa¹、Nawaoka Kohei¹、Furuta Taishhi¹、Shimose Koki¹、Goto Minori¹、Suzuki Yoshishige¹、Suzuki Motohiro²、Miwa Shinji¹ (1.Osaka Univ.、2.JASRI/SPring-8)

キーワード：magnetic anisotropy, X-ray magnetic circular dichroism, Voltage-controled magnetic anisotropy

Voltage-controlled magnetic anisotropy (VCMA) is promising because of a low energy consumption property. However, magnitude of VCMA in Fe(Co)/MgO system is more than ten times smaller than the requirement. Interface magnetic anisotropy and VCMA are correlated to spin-orbit interaction, in this regards, materials with large spin-orbit interaction such as Pt and Bi are candidates. In the present study, we have characterized magnetic properties of Fe/Pt/MgO and Fe/Bi/MgO multilayers by x-ray absorption spectroscopy under external voltage.