@Article{Shangina_etal2010, author="Shangina, E. L. and Smirnov, K. V. and Morozov, D. V. and Kovalyuk, V. V. and Gol{\textquoteright}tsman, G. N. and Verevkin, A. A. and Toropov, A. I.", title="Concentration dependence of the intermediate frequency bandwidth of submillimeter heterodyne AlGaAs/GaAs nanostructures", journal="Bull. Russ. Acad. Sci. Phys.", year="2010", volume="74", number="1", pages="100--102", optkeywords="2DEG AlGaAs/GaAs heterostructures; THz heterodyne detectors; IF bandwidth", abstract="The concentration dependence of the intermediate frequency bandwidth of heterodyne AlGaAs/GaAs detectors with 2D electron gas is measured using submillimeter spectroscopy with high time resolution at T= 4.2 K. The intermediate frequency bandwidth f3dBfalls from 245 to 145 MHz with increasing concentration of 2D electrons n s = (1.6-6.6) {\texttimes} 10[su11] cm-2. The dependence f3dB ≈ n s - 0.04{\textpm}is observed in the studied concentration range; this dependence is determined by electron scattering by the deformation potential of acoustic phonons and piezoelectric scattering.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1217), last updated on Tue, 06 Jul 2021 11:35:38 -0500", issn="1062-8738", doi="10.3103/S1062873810010272", opturl="http://link.springer.com/10.3103/S1062873810010272", opturl="https://doi.org/10.3103/S1062873810010272" }