Semiconductors

, Volume 50, Issue 12, pp 1641–1646

Quantum Hall effect and hopping conductivity in n-InGaAs/InAlAs nanoheterostructures

  • S. V. Gudina
  • Yu. G. Arapov
  • A. P. Saveliev
  • V. N. Neverov
  • S. M. Podgornykh
  • N. G. Shelushinina
  • M. V. Yakunin
  • I. S. Vasil’evskii
  • A. N. Vinichenko
XX International Symposium “Nanophysics and Nanoelectronics”, Nizhny Novgorod, March 14–18, 2016

Abstract

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.

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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • S. V. Gudina
    • 1
  • Yu. G. Arapov
    • 1
  • A. P. Saveliev
    • 1
  • V. N. Neverov
    • 1
  • S. M. Podgornykh
    • 1
    • 2
  • N. G. Shelushinina
    • 1
  • M. V. Yakunin
    • 1
    • 2
  • I. S. Vasil’evskii
    • 3
  • A. N. Vinichenko
    • 3
  1. 1.Mikheev Institute of Metal Physics, Ural BranchRussian Academy of SciencesYekaterinburgRussia
  2. 2.Yeltsin Ural Federal UniversityYekaterinburgRussia
  3. 3.National Research Nuclear University MEPhIMoscowRussia

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