講演情報
[14a-K303-5]Nonlinear Hall Effects in the Presence of the Chiral Spin Textures
〇(M1)Takeshi Tasaki1,2, Takaaki Dohi1, K. Vihanga De Zoysa1, Koya Saijo1,2, Hideo Ohno1,3,4,5, Shunsuke Fukami1,2,3,4,5,6 (1.RIEC, Tohoku Univ., 2.Tohoku Univ., 3.WPI-AIMR, 4.CSIS, Tohoku Univ., 5.CIES, Tohoku Univ., 6.InaRIS)
キーワード：
spintronics、nonlinear Hall Effects、Chiral Spin Textures
Chiral topological spin textures, exemplified by chiral domain walls (DWs) and magnetic skyrmions, have recently attracted attention as a building block in future spintronic devices. In this study, we prepared [Pt/Co/W]15 multilayer stacks on thermally oxidized Si substrates, expected to host chiral spin textures with high depinning energy, and observed an unconventional 2nd-order Hall resistance. Remarkably, we find a symmetric component of R(2f). In the presentation, we will discuss the detailed analysis of the results regarding the chirality, spin topology, and the contribution of the current-induced torque.