Open AccessДетектирование субтерагерцевых колебаний на основе гетероструктуры антиферромагнетик/тяжелый металл
Author(s) -
Е.Е. Козлова,
А.Р. Сафин
Publication year - 2022
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2022.09.52451.19079
Subject(s) - physics , detector , magnetic field , voltage , antiferromagnetism , condensed matter physics , magnetization , constant (computer programming) , constant voltage , electromagnetic field , field (mathematics) , optics , computer science , quantum mechanics , mathematics , pure mathematics , programming language
We study a model of a detector of subterahertz electromagnetic waves based on an array of heterostructures containing an antiferromagnet and a heavy metal. We show that the operating frequency of the detector can be tuned by a constant magnetic field applied in the direction of the easy magnetization axis of the antiferromagnet. The dependence of the rectified voltage on the frequency of the external electromagnetic wave for different values of the constant magnetic field is resonant in nature, and an increase in the constant magnetic field leads to an increase in the resonance peak. It is shown that the use of an array of antiferromagnets in the form of a comb structure makes it possible to increase the level of the rectified output voltage.