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This article is cited in 5 scientific papers (total in 5 papers)
XXII International symposium ''Nanophysics and Nanoelectronics'', Nizhny novgorod, March, 12-15, 2018
Nonuniversal scaling behavior of conductivity peak widths in the quantum Hall effect in InGaAs/InAlAs structures
S. V. Gudinaa, Yu. G. Arapova, E. V. Ilchenkoa, V. N. Neverova, A. P. Savelyeva, S. M. Podgornykhab, N. G. Shelushininaa, M. V. Yakuninab, I. S. Vasil'evskiic, A. N. Vinichenkoc a Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg
b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
c National Engineering Physics Institute "MEPhI", Moscow
Abstract:
The longitudinal $\rho_ {xx}$ and Hall $\rho_ {xy}$ resistances were measured in the region of the quantum phase transitions for the quantum Hall effect regime with magnetic fields up to 12 T at temperatures of $T$ = 0.4–30 K in two-dimensional electron systems $n$-In$_{0.9}$Ga$_{0.1}$Аs/In$_{0.81}$Al$_{0.19}$As. The nonuniversal scaling behavior of the temperature dependence of the width of the resistance $\rho_{xx}$ peaks related to the effect of the large-scale random potential and of Landau-level mixing with opposite spin directions was found.
Keywords:
Quantum Hall Effect (QHE), Quantum Phase Transition, Landau Levels, QHE Regime, Opposite Spin Directions.
Received: 25.04.2018 Accepted: 07.05.2018
Citation:
S. V. Gudina, Yu. G. Arapov, E. V. Ilchenko, V. N. Neverov, A. P. Savelyev, S. M. Podgornykh, N. G. Shelushinina, M. V. Yakunin, I. S. Vasil'evskii, A. N. Vinichenko, “Nonuniversal scaling behavior of conductivity peak widths in the quantum Hall effect in InGaAs/InAlAs structures”, Fizika i Tekhnika Poluprovodnikov, 52:12 (2018), 1447–1454; Semiconductors, 52:12 (2018), 1551–1558
Linking options:
https://www.mathnet.ru/eng/phts5658 https://www.mathnet.ru/eng/phts/v52/i12/p1447
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