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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 2, Pages 22–24
DOI: https://doi.org/10.21883/PJTF.2020.02.48947.18007 (Mi pjtf5209) 		 
The role of piezoeffect in anomalous dependence of the conductivity of AlGaAs/GaAs heterostructure with a two-dimensional electron gas on the distance between contacts

V. E. Sizov, M. V. Stepushkin

Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences
Full-text PDF (204 kB)
DOI: https://doi.org/10.21883/PJTF.2020.02.48947.18007
Abstract: The electric conductivity of the AlGaAs/GaAs heterostructure with two-dimensional electron gas has been experimentally studied in a temperature range of 10–300 K. At low temperatures, electric resistance of the structure exhibited growth when the distance between contacts decreased from 100 to 20 $\mu$m. For explaining this anomalous behavior, numerical simulation of the influence of piezoeffect in the semiconductor on the channel conductivity was carried out, which showed that it is necessary to take into account the crystallographic orientation of the channel and the influence of remote piezoelectric charges on its potential.
Keywords: two-dimensional electron gas, channel conductivity, piezoelectric effect, crystallographic direction, AlGaAs/GaAs.
Funding agency Grant number
Ministry of Education and Science of the Russian Federation
This study was performed and supported in the framework of a state order.
Received: 02.08.2019
Revised: 14.10.2019
Accepted: 15.10.2019
English version:
Technical Physics Letters, 2020, Volume 46, Issue 1, Pages 69–72
DOI: https://doi.org/10.1134/S1063785020010290
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. E. Sizov, M. V. Stepushkin, “The role of piezoeffect in anomalous dependence of the conductivity of AlGaAs/GaAs heterostructure with a two-dimensional electron gas on the distance between contacts”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 46:2 (2020), 22–24; Tech. Phys. Lett., 46:1 (2020), 69–72
Citation in format AMSBIB
\Bibitem{SizSte20}
\by V.~E.~Sizov, M.~V.~Stepushkin
\paper The role of piezoeffect in anomalous dependence of the conductivity of AlGaAs/GaAs heterostructure with a two-dimensional electron gas on the distance between contacts
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2020
\vol 46
\issue 2
\pages 22--24
\mathnet{http://mi.mathnet.ru/pjtf5209}
\crossref{https://doi.org/10.21883/PJTF.2020.02.48947.18007}
\elib{https://elibrary.ru/item.asp?id=42776861}
\transl
\jour Tech. Phys. Lett.
\yr 2020
\vol 46
\issue 1
\pages 69--72
\crossref{https://doi.org/10.1134/S1063785020010290}
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