New physics in high Landau levels

J. P. Eisenstein, M. P. Lilly, K. B. Cooper, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalConference articlepeer-review

24 Scopus citations

Abstract

Recent magneto-transport experiments on ultra-high mobility 2D electron systems in GaAs/AlGaAs heterostructures have revealed the existence of whole new classes of correlated many-electron states in highly excited Landau levels. These new states, which appear only at extremely low temperatures, are distinctly different from the familiar fractional quantum Hall liquids of the lowest Landau level. Prominent among the recent findings are the discoveries of giant anisotropies in the resistivity near half-filling of the third and higher Landau levels and the observation of re-entrant integer quantum Hall states in the flanks of these same levels. This contribution will survey the present status of this emerging field.

Original languageEnglish (US)
Pages (from-to)29-35
Number of pages7
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume6
Issue number1
DOIs
StatePublished - Feb 2000
Externally publishedYes
Event13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can
Duration: Aug 1 1999Aug 6 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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