Room Temperature Reversible Spin Hall Effect

Details Room Temperature Reversible Spin Hall Effect Room Temperature Reversible Spin Hall Effect

2006-09-13

arxiv.org/abs/cond-mat/0609304v1

Physics

Condensed Matter

Materials Science

12 pages, 4 figures

Scientific paper

Reversible spin Hall effect comprising the "direct" and "inverse" spin Hall effects was successfully detected at room temperature. This experimental demonstration proves the fundamental relations called Onsager reciprocal relations between spin and charge currents. A platinum wire with a strong spin-orbit interaction is used not only as a spin current absorber but also as a spin current source in the present lateral structure specially designed for clear detection of both charge and spin accumulations via the spin-orbit interaction. The obtained spin Hall conductivity is much larger than the reported value of Aluminum wire because of the larger spin-orbit interaction.

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