Density of States of Tunnel-Coupled 2D Electron Layers in Strong Magnetic Fields

Abstract

The density of states for a pair of disordered tunnel-coupled 2D electron layers in the quantum Hall regime is calculated. The interplay between the scattering-induced broadening of the Landau levels and tunnel-induced hybridization of the electron states is demonstrated. The conditions for the tunneling gap, when a single Landau level splits in two levels, are expressed through the parameters of the system. It is shown that even a symmetrical double-layer system in a strong mgnetic field acquires a substantial dipole moment due to interlayer asymmetry of the disorder.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADP012750

Entities

People

  • O. E. Raichev

Organizations

  • Russian Academy of Sciences

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Asymmetry
  • Born Approximations
  • Couplings
  • Dipole Moments
  • Diseases And Disorders
  • Distribution Functions
  • Elastic Scattering
  • Electron Gas
  • Electrons
  • Energy
  • Equations
  • Gaussian Distributions
  • Integrals
  • Magnetic Fields
  • Path Integrals
  • Scattering
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing
  • Quantum Science - Quantum Dots