Andreas C. Cangellaris, Karen M. Coperich, et al.
EMC 2001
Pronounced many-body exciton effects have been observed through photoluminescence in modulation-doped n-type GaAs quantum wells where a near-resonance coincidence exists between a transition involving two-dimensional electrons at the Fermi level in the first conduction subband and an exciton transition from the second conduction subband. Under these conditions, strong and distinct Fermi-edge singularities can be observed near k0. A magnetic field induces further enhancement of the effect but also leads to very large, B-1-periodic amplitude variations in the photoluminescence, with excursions over 3 orders of magnitude. © 1991 The American Physical Society.
Andreas C. Cangellaris, Karen M. Coperich, et al.
EMC 2001
D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
Min Yang, Jeremy Schaub, et al.
Technical Digest-International Electron Devices Meeting