Impurity Potential Broadening of the Landau Level as Measured by an Acoustoelectronic Method

Abstract

In the quantum Hall regime the conductivitvy sigma(sub xx) measured in a direct current experiment is equal to 0, whereas the alternative current conductivity Q has a finite value. It has been shown that from the study of this a.c. conductivity one could obtain valuable characteristics of 2DEG and estimate the role of random fluctuation potential. As it has been demonstrated earlier one of the best methods for the study of Q in semiconducting heterostructures is that of acoustoelectronic interaction of surface acoustic waves with 2DEG in a structure.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADP012748

Entities

People

  • A. M. Diakonov
  • I. L. Drichko
  • I. Y. Smirnov
  • V. D. Kagan

Organizations

  • Russian Academy of Sciences

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Acoustic Frequencies
  • Acoustic Waves
  • Electric Fields
  • Electron Gas
  • Electrons
  • Fermi Levels
  • Free Electrons
  • Frequency
  • Lithium Niobates
  • Magnetic Fields
  • Piezoceramics
  • Radio Frequency Generators
  • Radio Frequency Power
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Superconducting Magnet Technology

Technology Areas

  • Quantum Computing