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Pressure-induced Γ-X crossover in self-assembled In(Ga)As/GaAs quantum dots

  • S. G. Lyapin
  • , I. E. Itskevich
  • , I. A. Trojan
  • , P. C. Klipstein
  • , A. Polimeni
  • , L. Eaves
  • , P. C. Main
  • , M. Henini
  • University of Oxford
  • Russian Academy of Sciences
  • University of Nottingham
  • RAS - Institute of Solid State Physics

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

We report low-temperature photoluminescence (PL) studies of In(Ga)As/GaAs self-assembled quantum dots at hydrostatic pressures of up to 9 GPa. Observation of the Γ-X crossover between electron states confined in the dots and X-valley states in the GaAs matrix allows us to evaluate separately the energies of the electron and hole confined states.

Original languageEnglish
Pages (from-to)79-83
Number of pages5
JournalPhysica Status Solidi (B): Basic Research
Volume211
Issue number1
DOIs
StatePublished - Jan 1999
Externally publishedYes

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