biostudies-literatureUnknown25(17)Longo EThe magnetization of a ferromagnetic layer can be controlled via spin-charge conversion (SCC) phenomena originating in an adjacent topological insulator (TI). Insertion of nonmagnetic interlayers between these materials has been demonstrated to enhance the SCC efficiency, as shown for Sb₂Te₃/Au/Co(Fe) heterostructures. The inert nature of the Sb₂Te₃/Au interface was assumed to preserve the topological surface state (TSS) of Sb₂Te₃, which mediates the SCC. Al is explored as an alternative to Au for its long spin diffusion length. Spin pumping experiments indicate the absence of SCC in the Sb₂Te₃/Al/Co heterostructure. Core level and valence band photoemission spectroscopies reveal that Al forms stable coNano letters6888-6894https://www.ebi.ac.uk/biostudies/studies/S-EPMC12046589biostudies-literatureInfluence of Metal Interlayers on Spin-Charge Conversion in Sb<sub>2</sub>Te<sub>3</sub> Topological Insulator-Based Devices.PMC12046589Lamperti AShevedyaeva PMMatetskiy AVWiemer CFanciulli MLongo EBelli MMoras PMantovan RfalseInfluence of Metal Interlayers on Spin-Charge Conversion in Sb<sub>2</sub>Te<sub>3</sub> Topological Insulator-Based Devices.The magnetization of a ferromagnetic layer can be controlled via spin-charge conversion (SCC) phenomena originating in an adjacent topological insulator (TI). Insertion of nonmagnetic interlayers between these materials has been demonstrated to enhance the SCC efficiency, as shown for Sb₂Te₃/Au/Co(Fe) heterostructures. The inert nature of the Sb₂Te₃/Au interface was assumed to preserve the topological surface state (TSS) of Sb₂Te₃, which mediates the SCC. Al is explored as an alternative to Au for its long spin diffusion length. Spin pumping experiments indicate the absence of SCC in the Sb₂Te₃/Al/Co heterostructure. Core level and valence band photoemission spectroscopies reveal that Al forms stable co2025-01-01T00:00:00Z2025 Apr2025-07-10T03:08:24.875Z2025-07-10T03:08:24.875ZS-EPMC120465894024985410.1021/acs.nanolett.4c06658