[16a-S4_201-1~13] 10.2 スピン基盤技術・萌芽的デバイス技術

9:00 〜 9:15奨励賞エントリー英語発表

[16a-S4_201-1] Theoretical study on spin current generation via topological magnetic structures

〇(M2)Aoi Kajihara¹, Shun Okumura^2,3, Yukitoshi Motome¹ (1.The Univ. of Tokyo, 2.QPEC, The Univ. of Tokyo, 3.RIKEN CEMS)

キーワード：

skyrmion、spin current、topology

Topological magnetic structures, exemplified by skyrmions, can generate spin currents via emergent electromagnetic fields arising from their noncoplanar spin configurations. In this study, we theoretically demonstrate that distinct topological magnetic structures generate spin currents with characteristic spin polarization directions. Notably, we show that merons, namely half-skyrmions, can yield a pronounced spin current despite the absence of net magnetization. Our results highlight topological magnetic structures as versatile platforms for spin current generation, thereby broadening the scope of spintronics based on magnetic metals.