[14a-K302-1~5] 10.1 新物質・新機能創成（作製・評価技術）

10:30 〜 10:45英語発表

[14a-K302-1] Influence of Bi doping on the magnetization of YIG/sGGG characterized by static Magneto-Optic Kerr effect (MOKE) system

〇(P)Dongxun Yang¹, Md Shamim Sarker¹, Siyi Tang¹, Hiroyasu Yamahara¹, Munetoshi Seki¹, Hitoshi Tabata¹ (1.The Univ. Tokyo)

キーワード：

Magnetic-optic Kerr effect (MOKE)、YIG

Dopant types and concentrations largely influence the magnetization properties of Y₃Fe₅O₁₂ (YIG) thin film, which can be rapidly characterized by the polarization variation between the incident and reflected laser based on the Magneto-Optic Kerr effect (MOKE). In this work, we performed the MOKE technique to characterize the hysteresis properties of bismuth (Bi)-doped YIG thin film on a (111) SubstitutedGd₃Ga₅O₁₂ (sGGG) substrate with different doping ratios and discussed the mechanism of the Bi doping on the magnetic properties as well as the MOKE signal enhancement.