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Title: Ballistic magnetotransport in a suspended two-dimensional electron gas with periodic antidot lattices

Abstract

The magnetoresistance of suspended semiconductor nanostructures with a two-dimensional electron gas structured by periodic square antidot lattices is studied. It is shown that the ballistic regime of electron transport is retained after detaching the sample from the substrate. Direct comparative analysis of commensurability oscillations of magnetoresistance and their temperature dependences in samples before and after suspension is performed. It is found that the temperature dependences are almost identical for non-suspended and suspended samples, whereas significant differences are observed in the nonlinear regime, caused by direct current passage. Commensurability oscillations in the suspended samples are more stable with respect to exposure to direct current, which can be presumably explained by electron–electron interaction enhancement after detaching nanostructures from the high-permittivity substrate.

Authors:
; ; ; ;  [1]
  1. Siberian Branch of the Russian Academy of Sciences, Rzhanov Institute of Semiconductor Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22649635
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductors; Journal Volume: 51; Journal Issue: 1; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DIRECT CURRENT; ELECTRON GAS; ELECTRON-ELECTRON INTERACTIONS; ELECTRONS; MAGNETORESISTANCE; NANOSTRUCTURES; PERIODICITY; PERMITTIVITY; SEMICONDUCTOR MATERIALS; SUBSTRATES; TEMPERATURE DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS; TWO-DIMENSIONAL SYSTEMS

Citation Formats

Zhdanov, E. Yu., E-mail: zhdanov@isp.nsc.ru, Pogosov, A. G., Budantsev, M. V., Pokhabov, D. A., and Bakarov, A. K. Ballistic magnetotransport in a suspended two-dimensional electron gas with periodic antidot lattices. United States: N. p., 2017. Web. doi:10.1134/S1063782617010250.
Zhdanov, E. Yu., E-mail: zhdanov@isp.nsc.ru, Pogosov, A. G., Budantsev, M. V., Pokhabov, D. A., & Bakarov, A. K. Ballistic magnetotransport in a suspended two-dimensional electron gas with periodic antidot lattices. United States. doi:10.1134/S1063782617010250.
Zhdanov, E. Yu., E-mail: zhdanov@isp.nsc.ru, Pogosov, A. G., Budantsev, M. V., Pokhabov, D. A., and Bakarov, A. K. Sun . "Ballistic magnetotransport in a suspended two-dimensional electron gas with periodic antidot lattices". United States. doi:10.1134/S1063782617010250.
@article{osti_22649635,
title = {Ballistic magnetotransport in a suspended two-dimensional electron gas with periodic antidot lattices},
author = {Zhdanov, E. Yu., E-mail: zhdanov@isp.nsc.ru and Pogosov, A. G. and Budantsev, M. V. and Pokhabov, D. A. and Bakarov, A. K.},
abstractNote = {The magnetoresistance of suspended semiconductor nanostructures with a two-dimensional electron gas structured by periodic square antidot lattices is studied. It is shown that the ballistic regime of electron transport is retained after detaching the sample from the substrate. Direct comparative analysis of commensurability oscillations of magnetoresistance and their temperature dependences in samples before and after suspension is performed. It is found that the temperature dependences are almost identical for non-suspended and suspended samples, whereas significant differences are observed in the nonlinear regime, caused by direct current passage. Commensurability oscillations in the suspended samples are more stable with respect to exposure to direct current, which can be presumably explained by electron–electron interaction enhancement after detaching nanostructures from the high-permittivity substrate.},
doi = {10.1134/S1063782617010250},
journal = {Semiconductors},
number = 1,
volume = 51,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2017},
month = {Sun Jan 15 00:00:00 EST 2017}
}