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Observation of inverse spin Hall effect in bismuth selenide
Bismuth Selenide $({\mathrm{Bi}}_{2}{\mathrm{Se}}_{3})$ is a topological insulator exhibiting helical spin polarization and strong spin-orbit coupling. The spin-orbit coupling links the charge current to spin current via the spin Hall effect (SHE). We demonstrate a ${\mathrm{Bi}}_{2}{\mathrm{Se}}_{3}$ spin detector by injecting the pure spin current from a magnetic permalloy layer to a …