E.E. Kozlova1, A.R Safin2, S.A. Nikitov3

1-3 Kotelnikov IRE of RAS (Moscow, Russia)

Problem formulating. At present, there are noticeable difficulties in the development of compact and frequency-tunable generators and detectors of THz radiation operating at room temperatures. Antiferromagnets (AFM) are promising materials for creating such generators and detectors.

Goal. Carry out a theoretical study of THz electromagnetic wave detectors based on an antiferromagnet – heavy metal (HM) heterostructure.

Result. Two models of THz electromagnetic wave detectors based on the AFM-HM heterostructure are proposed. It is shown that the frequency dependence of the constant voltage of the detector has a resonant character with a peak corresponding to the antiferromagnetic resonance frequency.

Practical meaning. AFM-HM heterostructures can become the basis for quadratic resonant detectors of THz radiation.

Kozlova E.E., Safin A.R, Nikitov S.A. Detection of terahertz electromagnetic waves using the "antiferromagnet – heavy metal" heterostructure. Nonlinear World. 2022. V. 20. № 2. P. 19-23. DOI: https://doi.org/10.18127/j20700970-202202-04 (In Russian)

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