1996/10/31 by James R. Chapman, Neil F. Johnson, V. Nikos Nicopoulos · 1 citation
Chemistry · Mathematics · Physics and Astronomy · #Charge (physics) #Chemistry #Condensed matter physics #Exciton #Field (mathematics) #Geometry #Mathematics #Molecular physics #Optically active #Optics #Perpendicular #Photoluminescence #Physics #Pure mathematics #Quantum and electron transport phenomena #Quantum mechanics #Semiconductor Quantum Structures and Devices #Signature (topology) #Spectroscopy and Quantum Chemical Studies #Stability (learning theory) #cond-mat
paper · pdf · doi:10.1103/physrevb.55.r10221
Minor revisions, mainly removal of the term trion in favour of the term charged-exciton to comply with Physical Review B. To be published as a Rapid Communication in Physical Review B
arxiv created 1997/03/14 · openalex publication_date 1997/04/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A negatively charged quasi-two-dimensional exciton (X^\mathrm\ensuremath-) is studied numerically in the presence of a uniform perpendicular B field. Various quasi-two-dimensional geometries are studied. The charge distribution of the X^\mathrm\ensuremath- parallel to the B field is found to be crucial in determining the stability of the optically active X^\mathrm\ensuremath- and hence its photoluminescence signature. The theory provides a quantitative explanation of recent experimental results obtained for a GaAs quantum well. Effects are found that cannot be described within a lowest-Landau-level approximation.