Oscillatory density-of-states of Landau bands in a two-dimensional lateral surface superlattice

C. T. Liu, D. C. Tsui, M. Shayegan, K. Ismail, D. A. Antoniadis, Henry I. Smith

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A new oscillatory phenomenon is observed in the magneto-capacitance between the high mobility two-dimensional electron gas in a GaAs/AlGaAs heterostructure and a metal grid gate of 200nm periodicity. The observed minima reflect the minima in the density-of-states of Landau bands resulting from removal of the Landau level degeneracy by the grid gate potential. A model calculation is carried out and the results agree with the experimental observation.

Original languageEnglish (US)
Pages (from-to)395-399
Number of pages5
JournalSolid State Communications
Volume75
Issue number5
DOIs
StatePublished - Aug 1990

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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