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

Journal Article · Mon Dec 14 04:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4938132· OSTI ID:22486240

Tani, Yasuo; Shikoh, Eiji ^[1]; Teki, Yoshio ^[2]

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1. Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585 (Japan)
2. Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585 (Japan)

We report the spin-pump-induced spin transport properties of a pentacene film prepared by thermal evaporation. In a palladium(Pd)/pentacene/Ni{sub 80}Fe{sub 20} tri-layer sample, a pure spin-current is generated in the pentacene layer by the spin-pumping of Ni{sub 80}Fe{sub 20}, 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.

• OSTI ID: 22486240
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 24 Vol. 107; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CURRENTS
ELECTROMOTIVE FORCE
EVAPORATION
FILMS
HALL EFFECT
LAYERS
PALLADIUM
PENTACENE
PUMPING
SPIN
TEMPERATURE RANGE 0273-0400 K