[10a-S302-1~11] 10.2 Fundamental and exploratory device technologies for spin

▼ [10a-S302-9] Investigation of magnon absorption from Y₃Fe₅O₁₂ into metals

〇Sotaro Mae¹, Ei Shigematsu¹, Ryo Ohshima¹, Yuichiro Ando¹, Teruya Shinjo¹, Masashi Shiraishi¹ (1.Kyoto Univ.)

Keywords:magnon, spin wave

Magnon has a potential to be a new information carrier because of its Joule-heating-less and long-distance propagation in ferromagnets. Recently, Das et al. demonstrated that magnon in Y₃Fe₅O₁₂ is absorbed into an adjacent ferromagnet, Ni-Fe alloy (Py), and the absorption can be modulated by the magnetization direction of the Py. Although this study makes a progress toward a realization of magnonic device, a detailed principle of magnon absorption into metals has not been sufficiently clarified yet. Here, we study magnon propagation with several metallic middle strips, Py, Co, and Pt, to explore the mechanisms of magnon absorption into metals.