11:29 〜 11:31 [PS-8-23 (Late News)] Unidirectional out-of-plane spin textures in two-dimensional group-IV monochalcogenide MX monolayer for persistent spin helix ○M.A.U. Absor1, F. Ishii2 (1.Gadjah Mada Univ. (Indonesia), 2.Kanazawa Univ. (Japan))