Quantum Hall effect and hopping conductivity in n-InGaAs/InAlAs nanoheterostructures
- Авторы: Gudina S.1, Arapov Y.1, Saveliev A.1, Neverov V.1, Podgornykh S.1,2, Shelushinina N.1, Yakunin M.1,2, Vasil’evskii I.3, Vinichenko A.3
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Учреждения:
- Mikheev Institute of Metal Physics, Ural Branch
- Yeltsin Ural Federal University
- National Research Nuclear University MEPhI
- Выпуск: Том 50, № 12 (2016)
- Страницы: 1641-1646
- Раздел: XX International Symposium “Nanophysics and Nanoelectronics”, Nizhny Novgorod, March 14–18, 2016
- URL: https://journals.rcsi.science/1063-7826/article/view/198950
- DOI: https://doi.org/10.1134/S1063782616120071
- ID: 198950
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Аннотация
The longitudinal and Hall magnetoresistances are measured in the quantum Hall effect regime in the n-InGaAs/InAlAs heterostructures at temperatures of T = (1.8–30) K in magnetic fields up to B = 9 T. Temperature-induced transport in the region of the longitudinal resistance minima, corresponding to the plateau regions at Hall resistance, is investigated within the framework of the concept of hopping conductivity in a strongly localized electron system. The analysis of variable-range hopping conductivity in the region of the second, third, and fourth plateau of the quantum Hall effect provides the possibility of determining the localization length exponent.
Об авторах
S. Gudina
Mikheev Institute of Metal Physics, Ural Branch
Автор, ответственный за переписку.
Email: svpopova@imp.uran.ru
Россия, Yekaterinburg, 620137
Yu. Arapov
Mikheev Institute of Metal Physics, Ural Branch
Email: svpopova@imp.uran.ru
Россия, Yekaterinburg, 620137
A. Saveliev
Mikheev Institute of Metal Physics, Ural Branch
Email: svpopova@imp.uran.ru
Россия, Yekaterinburg, 620137
V. Neverov
Mikheev Institute of Metal Physics, Ural Branch
Email: svpopova@imp.uran.ru
Россия, Yekaterinburg, 620137
S. Podgornykh
Mikheev Institute of Metal Physics, Ural Branch; Yeltsin Ural Federal University
Email: svpopova@imp.uran.ru
Россия, Yekaterinburg, 620137; Yekaterinburg, 620002
N. Shelushinina
Mikheev Institute of Metal Physics, Ural Branch
Email: svpopova@imp.uran.ru
Россия, Yekaterinburg, 620137
M. Yakunin
Mikheev Institute of Metal Physics, Ural Branch; Yeltsin Ural Federal University
Email: svpopova@imp.uran.ru
Россия, Yekaterinburg, 620137; Yekaterinburg, 620002
I. Vasil’evskii
National Research Nuclear University MEPhI
Email: svpopova@imp.uran.ru
Россия, Moscow, 115409
A. Vinichenko
National Research Nuclear University MEPhI
Email: svpopova@imp.uran.ru
Россия, Moscow, 115409