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arXiv · 1112.4969

Direct detection of magnon spin transport by the inverse spin Hall effect

A. V. Chumak·A. A. Serga·M. B. Jungfleisch·R. Neb·D. A. Bozhko·V. S. Tiberkevich·B. Hillebrands
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Abstract

Conversion of traveling magnons into an electron carried spin current is demonstrated in a time resolved experiment using a spatially separated inductive spin-wave source and an inverse spin Hall effect (ISHE) detector. A short spin-wave packet is excited in a yttrium-iron garnet (YIG) waveguide by a microwave signal and is detected at a distance of 3 mm by an attached Pt layer as a delayed ISHE voltage pulse. The delay in the detection appears due to the finite spin-wave group velocity and proves the magnon spin transport. The experiment suggests utilization of spin waves for the information transfer over macroscopic distances in spintronic devices and circuits.

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A. V. Chumak, A. A. Serga, M. B. Jungfleisch, R. Neb, D. A. Bozhko, V. S. Tiberkevich, B. Hillebrands. 2011-12-21. Direct detection of magnon spin transport by the inverse spin Hall effect. https://doi.org/10.1063/1.3689787

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