Presentation Information
[9p-S1-2]Spin transport in layered materials with strong spin-orbit interactions
〇Yasuhiro Niimi1,2,3 (1.Grad. Sch. Sci., Osaka Univ., 2.CSRN, Osaka Univ., 3.OTRI, Osaka Univ.)
Keywords:
spintronics,layered materials
Spintronics research focuses on the generation, detection, and manipulation of spin currents, which are flows of spin angular momentum. Materials with weak spin–orbit coupling enable long-distance, low-loss transport, while those with strong coupling allow efficient spin current generation and detection. Since the 2010s, layered materials have enabled nonconventional spin-to-charge conversion where spin, charge, and spin current directions are not orthogonal. However, strong conductivity anisotropy in these materials has often been overlooked.
Here, we study spin transport in nonlocal spin valve devices using PtTe2, showing that neglecting anisotropy leads to overestimation of conversion efficiency. We also investigate exfoliated CrNb3S6, where enhanced signals near its magnetic transition and unconventional nonlocal responses arise from its helical magnetic structure.
Here, we study spin transport in nonlocal spin valve devices using PtTe2, showing that neglecting anisotropy leads to overestimation of conversion efficiency. We also investigate exfoliated CrNb3S6, where enhanced signals near its magnetic transition and unconventional nonlocal responses arise from its helical magnetic structure.