Optically Induced Spin Electromotive Force in a Ferromagnetic-Semiconductor Quantum Well Structure.

Rozhansky, Igor V; Kalitukha, Ina V; Dimitriev, Grigorii S; Ken, Olga S; Dorokhin, Mikhail V; Zvonkov, Boris N; Arteev, Dmitri S; Averkiev, Nikita S et al. · Nano Lett · 2023

basic_science · Level V

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Abstract

Hybrid structures combining ferromagnetic (FM) and semiconductor constituents have great potential for future applications in the field of spintronics. A systematic approach to study spin-dependent transport in a GaMnAs/GaAs/InGaAs quantum well (QW) hybrid structure with a few-nanometer-thick GaAs barrier is developed. It is demonstrated that a combination of spin electromotive force measurements and photoluminescence detection provides a powerful tool for studying the properties of such hybrid structures and allows the resolution of the dynamic FM proximity effect on a nanometer scale. The method can be generalized to various systems, including rapidly developing 2D van der Waals materials.