Inverse spin-Hall effect in palladium at room temperature

The inverse spin-Hall effect, conversion of a spin current into electromotive force, has been investigated in a simple Ni 81 Fe 19 / Pd film using the spin pumping. In the Ni 81 Fe 19 / Pd film, a spin current generated by the spin pumping is converted into an electromotive force using the inverse s...

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Bibliographic Details
Published in:Journal of applied physics 2010-12, Vol.108 (11), p.113925-113925-4
Main Authors: Ando, K., Saitoh, E.
Format: Article
Language:English
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Summary:The inverse spin-Hall effect, conversion of a spin current into electromotive force, has been investigated in a simple Ni 81 Fe 19 / Pd film using the spin pumping. In the Ni 81 Fe 19 / Pd film, a spin current generated by the spin pumping is converted into an electromotive force using the inverse spin-Hall effect in the Pd layer. From the magnitude of the electromotive force, we estimated the spin-Hall angle for Pd as 0.01. This large spin-Hall angle for Pd is consistent with the prediction from the Gilbert damping enhancement due to the spin pumping. This value will be a crucial piece of information for spintronics device engineering.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3517131