Study of the features of spin-injection generation of THz radiation in arrays of magnetic nanowires

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Abstract

The operation of a spin-injection THz emitter based on an array of two-layer FeCo/FeNi nanowires grown in a track membrane is investigated. The general operating principle of a spin-injection emitter is presented. The non-thermal nature of spin-injection radiation in the frequency range of 15–20 THz was experimentally demonstrated. When the voltage reached 3 V, the effect of an abrupt increase in the resistance of the emitter, a decrease in its current, and at the same time an increase in the emitted power was observed. The effect of power increase with decreasing current is presumably associated with the presence of spin impedance in the magnetic transitions of nanowires.

About the authors

S. G Chigarev

Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences, Fryazino Branch

Email: chig50@mail.ru
Fryazino, Russia

E. A Vilkov

Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences, Fryazino Branch

Fryazino, Russia

O. A Byshevski-Konopko

Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences, Fryazino Branch

Fryazino, Russia

D. L Zagorskiy

Federal Scientific Research Center "Crystallography and Photonics" of the Russian Academy of Sciences, National Research Center "Kurchatov Institute"

Moscow, Russia

I. M Doludenko

Federal Scientific Research Center "Crystallography and Photonics" of the Russian Academy of Sciences, National Research Center "Kurchatov Institute"

Moscow, Russia

A. I Panas

Shokin ISTOK Research and Production Enterprise

Fryazino, Russia

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