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Shot Noise Induced by Nonequilibrium Spin Accumulation

URN to cite this document:
urn:nbn:de:bvb:355-epub-312121
Arakawa, Tomonori ; Shiogai, Junichi ; Ciorga, Mariusz ; Utz, Martin ; Schuh, Dieter ; Kohda, Makoto ; Nitta, Junsaku ; Bougeard, Dominique ; Weiss, Dieter ; Ono, Teruo ; Kobayashi, Kensuke
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Date of publication of this fulltext: 09 Jan 2015 13:17


Abstract

When an electric current passes across a potential barrier, the partition process of electrons at the barrier gives rise to the shot noise, reflecting the discrete nature of the electric charge. Here we report the observation of excess shot noise connected with a spin current which is induced by a nonequilibrium spin accumulation in an all-semiconductor lateral spin-valve device. We find that ...

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