Density-dependent band-gap renormalization of one-component plasma in GaxIn1-xAs/AlyIn1-yAs single quantum wells

Yong Hang Zhang, Roberto Cingolani, Klaus Ploog

Research output: Contribution to journalArticle

22 Scopus citations


We report the results of a photoluminescence investigation on n-type modulation-doped GaxIn1-xAs/AlyIn1-yAs single quantum wells which are intentionally doped in the well center with Be acceptors. Strong collective recombinations of the two-dimensional electron gas with different k states up to the Fermi edge and localized holes bound to ionized acceptors are observed. By using an electron-transfer effect, the density-depdendent band-gap renormalization of an electron one-component plasma in a quantum well is quantitatively measured. Experimental results are compared with existing theory.

Original languageEnglish (US)
Pages (from-to)5958-5961
Number of pages4
JournalPhysical Review B
Issue number11
StatePublished - Jan 1 1991
Externally publishedYes


ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this