Photon-Gated Spin Transistor.

Li, Fan; Song, Cheng; Cui, Bin; Peng, Jingjing; Gu, Youdi; Wang, Guangyue; Pan, Feng · Adv Mater · 2017

basic_science · Level V

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Abstract

A new type of spin transistor with an optical gate is proposed with partial exposure of the device, where spin scattering is enhanced under light illumination due to the photon-induced minor spins. Consequently a reproducible transient gate operation of reisitance via optical methods is observed, as ascribed to the nature of spin excitation.