2022
DOI: 10.3390/met12101676
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Controlled Spintronic Emitter of THz Radiation on an Atomically Thin WS2/Silicon Substrate

Abstract: The control and monitoring of the polarization of terahertz radiation are of interest for numerous applications. Here we present a simple controllable THz emitter with a small coercive magnetic field. It is based on a Co/WS2/silicon structure, in which the presence of uniaxial magnetic anisotropy caused by mechanical stress in a ferromagnetic film was found. Our results show that a ferromagnet/semiconductor emitter can become a technologically simple device for terahertz spintronics.

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Cited by 3 publications
(2 citation statements)
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“…For all other samples, the values of τ es were located between 100 and 400 fs. The Γ ep values were larger than 1 ps, as expected based on previous work [31].…”
Section: Modelsupporting
confidence: 89%
“…For all other samples, the values of τ es were located between 100 and 400 fs. The Γ ep values were larger than 1 ps, as expected based on previous work [31].…”
Section: Modelsupporting
confidence: 89%
“…На сегодняшний день предпринято немало усилий для улучшения указанных параметров, среди которых: модификация функциональных слоев СТЭ (тип материала, толщина и др.) [12,[19][20][21], использование схем каскадного усиления ТГц излучения [22], усиление ТГц-излучения за счет создания гибридных структур, сочетающих подходы спин-зарядовой конверсии и создания антенн на поверхности пленок СТЭ [18,23], применение подходов плазмоники и создание микросктруктурированных СТЭ [24][25][26], создание условий резонансного поглощения оптического излучения в функциональной структуре СТЭ за счет интеграции диэлектрических (брэгговских) зеркал [27,28] ( )…”
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