paper

Spin-pump-induced spin transport in a thermally-evaporated pentacene film

arXiv:1507.06063 · doi:10.1063/1.4938132

Abstract

We report the spin-pump-induced spin transport properties of a pentacene film prepared by thermal evaporation. In a palladium(Pd)/pentacene/Ni80Fe20 tri-layer sample, a pure spin-current is generated in the pentacene layer by the spin-pumping of Ni80Fe20, which is independent of the conductance mismatch problem in spin injection. The spin current is absorbed into the Pd layer, converted into a charge current with the inverse spin-Hall effect in Pd, and detected as an electromotive force. This is clear evidence for the pure spin current at room temperature in pentacene films prepared by thermal evaporation.

22 pages, 5 figures, Supplemental material. To be appeared in Appl. Phys. Lett

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