Correlation effects in strain-induced quantum dots

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Universita di Lecce
  • University of Modena and Reggio Emilia
  • VTT Technical Research Centre of Finland
  • University of Tokyo

Abstract

We report on Coulomb correlation effects in the luminescence of strain-induced quantum dots. In single dots, under low power excitation, we observe the rising of sharp lines associated to the formation of excitonic molecules. In the grand-ensemble, in magnetic fields up to 45 T, we observe Darwin-Fock states of the dots to merge into a unique Landau level, with a considerable reduction in the total diamagnetic shift due to the enhanced electron-hole correlation caused by the increased degeneracy of the state.

Details

Original languageEnglish
Pages (from-to)361-366
Number of pages6
JournalPHYSICA STATUS SOLIDI B: BASIC SOLID STATE PHYSICS
Volume224
Issue number2
Publication statusPublished - Mar 2001
MoE publication typeA1 Journal article-refereed

ID: 5548037