Precursors of the excitonic insulator in excited quantum wells

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9 Citations (Scopus)

Abstract

The theory of the magnetooptical properties of highly excited quantum wells is reviewed with emphasis on recent experimental work in a collaboration led by the Chernogolovka group. Realistic numerical calculations strongly support the interpretation of the experimental magnetoluminescence spectra in terms of bound electron-hole pairs, but at the experimental plasma temperatures of 40-50 K phase coherence and thus observation of the excitonic insulator state is not yet achieved. Important screening effects beyond the Hartree-Fock approximation exist even at magnetic fields of 10 T. At lower densities, evidence of dynamical screening of the electron-hole interaction is found.

Original languageEnglish
Pages (from-to)154-157
Number of pages4
JournalPhysica Scripta
Volume1992
Issue numberT45
DOIs
Publication statusPublished - 1992 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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