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Tilted magnetic field quantum magnetotransport in the double quantum well with a sizable bulkg-factor: InxGa1−xAs/GaAs

Authors
Journal
Physica E Low-dimensional Systems and Nanostructures
1386-9477
Publisher
Elsevier
Publication Date
Volume
40
Issue
5
Identifiers
DOI: 10.1016/j.physe.2007.09.048
Keywords
  • Double Quantum Well
  • Quantum Hall Effect
  • Tilted Magnetic Field
  • Parallel Magnetic Field
  • Interlayer Correlations
Disciplines
  • Physics

Abstract

Abstract Rich patterns of transformations in the structure of quantum Hall (QH) effect and magnetoresistivity under tilted magnetic fields were obtained in the In x Ga 1− x As/GaAs double quantum well at mK temperatures. Local features correspond to the calculated intersections of Landau levels from different subbands and are due to the sharp motion of their crossing points with parallel field component. An incipient quenching with parallel field of the filling factor ν=3 QH state is revealed, which should be due to suppression of the interlayer connection. The observed peculiar monotonous shift in perpendicular fields with increasing in-plain field of the peak between QH states ν=1 and 2 as well as an unusual minimum on some QH plateaus are probably beyond the single particle treatment.

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