[17a-P01-1~66] 17 Nanocarbon and Two-Dimensional Materials (Poster)

[17a-P01-55] Influence of interfacial layer on the inverse spin Hall effect of Bi₂Te₃/CoFeB

〇Misako Morota¹, Shogo Hatayama¹, Wipakorn Jevasuwan², Naoki Fukata², Yuta Saito^1,3 (1.AIST, 2.NIMS, 3.Tohoku Univ.)

Keywords:

layered material,spintronics,Ferromagnetic resonance

Te-based layered materials have strong spin-orbit coupling and are expected to be a highly efficient spin source. These materials have a characteristic crystal structure consisting of superposed Te-terminated atomic layers and exhibit a unique surface electronic state. On the other hand, the surface state is strongly sensitive to the magnetic proximity effect, thus the control of the interfacial structure is a key issue. In this study, we investigate the relationship between the interfacial layers and spin injection and generation efficiency using a stacked sample in which Te is inserted as an interlayer film between the ferromagnetic material CoFeB and the layered material Bi₂Te₃.