Electron-hole complexes in self-assembled quantum dots in strong magnetic fields

Shun-Jen Cheng*, W. Sheng, P. Hawrylak, S. Raymond, S. Studenikin, A. Sachrajda, Z. Wasilewski, A. Babinski, M. Potemski, G. Ortner, M. Bayer

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


We present results of calculations and experiments on electron-hole complexes in InGaAs/GaAs self-assembled quantum dots in high magnetic field (B). Due to hidden symmetries, the chemical potential of an N-exciton system at special B fields becomes insensitive to the exciton number as well as the magnetic field. This results in plateau regions of high intensity in measured magneto-PL spectrum. Theoretical calculations using exact diagonalization techniques successfully explain the measured magneto-photoluminescence spectrum with B fields up to 28 T.

Original languageEnglish
Pages (from-to)211-214
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number2-4
StatePublished - 1 Mar 2004
EventProceedings of the Eleventh International Conference on Modulation (MSS11) - Nara, Japan
Duration: 14 Jul 200318 Jul 2003


  • Electron-hole complexes
  • Exciton
  • Quantum dot

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