Excitons in dense two-dimensional electron-hole magnetoplasmas

L. V. Butov, V. D. Kulakovskii, G. E.W. Bauer, A. Forchel, D. Grützmacher

研究成果: Article査読

28 被引用数 (Scopus)

抄録

We report clear excitonic effects in the optical spectra of neutral, dense magnetoplasmas in an In0.53Ga0.47As/InP quantum well at low temperatures. The observed suppression of the density dependence of the uppermost occupied (je=jh=N) Landau-level transition energies in the range of filling factors N<ν/2<N+1 is direct evidence that electrons and holes from the Nth Landau levels bind into magnetoexcitons. The effect disappears with increasing temperature. Good agreement between experimental results and theoretical calculations is obtained by including both the inter-Landau-level coupling and screening effects.

本文言語English
ページ(範囲)12765-12768
ページ数4
ジャーナルPhysical Review B
46
19
DOI
出版ステータスPublished - 1992
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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