[11a-E214-1~11] 10.1 新物質・新機能創成（作製・評価技術）

9:00 〜 9:15英語発表

[11a-E214-1] Doping-Induced Dual-Frequency Spin Dynamics in Co/Si-Substituted YIG Films Probed by Time-resolved Magneto-Optic Faraday effect (TR-MOFE)

〇(P)Dongxun Yang¹, Ritsuki Sonetaka¹, Md Shamim Sarker¹, Hiroyasu Yamahara¹, Munetoshi Seki¹, Hitoshi Tabata¹ (1.Tokyo Univ.)

キーワード：

spin dynamics、Co/Si-YIG

In this work, we use time-resolved magneto-optical Faraday effect (TR-MOFE) to investigate spin dynamics in Co/Si-substituted YIG films with different doping levels. By combining field-angle-dependent optical measurements with magnetic resonance analysis, we aim to clarify how dual chemical substitution affects the effective anisotropy landscape, relaxation behavior, and possible emergence of complex spin precession modes.