Transverse magnetic focusing and the dispersion of GaAs 2D holes at (311)A heterojunctions

J. J. Heremans, M. B. Santos, M. Shayegan

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16 Scopus citations

Abstract

We report transverse magnetic focusing experiments on two-dimensional hole systems confined in square and triangular quantum wells grown on (311)A GaAs substrates. The focusing barriers arc oriented along different crystallographic directions and allow us to derive the constant energy contours in K-space. The results indicate a nearly elliptical shape for these contours which we interpret in light of a lateral surface superlatticc induced by corrugations at the heterojunction.

Original languageEnglish (US)
Pages (from-to)348-352
Number of pages5
JournalSurface Science
Volume305
Issue number1-3
DOIs
StatePublished - Mar 20 1994

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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