https://doi.org/10.1007/s100510050348
Kinetics of dark excitons and excitonic trions in InGaAs single quantum well
1
ISSP, Russian Academy of Sciences, 142432 Chernogolovka, Russia
2
GHMFL, MPI-FKF/CNRS, 25 avenue des Martyrs, 38042, Grenoble, France
3
School of Physics and Chemistry, Lancaster University, Lancaster, LA1 4YB, UK
4
Würzburg University, Institute of Technical Physics,
Am Hubland, 97074,Würzburg, Germany
Corresponding author: a gmartin@polycnrs-gre.fr
Received:
29
October
1997
Revised:
20
February
1998
Accepted:
21
February
1998
Published online: 15 July 1998
Magnetooptical studies performed on a wide InGaAs/GaAs single quantum well indicate that
optically non-active (dark) excitons with total angular momentum
play the role of a
reservoir for the creation of free multiparticle excitonic complexes. After analyzing the
magnetic field evolution of the circularly polarized components of the low energy structure
appearing in the main excitonic luminescence line we assign this feature to the excitonic trion
formation. The binding energy of the excitonic trions was estimated to be of the order of
1 meV.
PACS: 78.66.-w – Optical properties of specific thin films, surfaces, and low-dimensional structures: superlattices, quantum well structures, multilayers, and microparticles / 78.66.Fd – III-V semiconductors / 71.35.-y – Excitons and related phenomena
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998