Fermi Edge Singularities in Doped Quantum Wells with Strong In-Plane Type I Modulation
- 27 May 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 76 (22) , 4219-4222
- https://doi.org/10.1103/physrevlett.76.4219
Abstract
Doped lateral superlattices realized on misoriented semiconductors substrates provide a tunable type I potential at the scale of both Fermi wavelength and Fermi energy of the electron system. The tuning of amplitude and symmetry changes efficiently the electron-hole overlap and the hole dimensionality. These two parameters control many-body processes involved in the photon emission at the Fermi level. The resulting spectral singularity is evidenced in photoluminescence experiments at low temperature.Keywords
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