Plasma dispersion in a layered electron gas: A determination in GaAs-(AlGa) As heterostructures
- 15 June 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 25 (12) , 7867-7870
- https://doi.org/10.1103/physrevb.25.7867
Abstract
The dispersion of the plasma frequency of layered electron gases in GaAs-(AlGa) As heterostructures was determined by inelastic light scattering. The measured dispersions differ from that in two- and three-dimensional plasmas. They are linear in the in-plane component of the wave vector. This observation confirms predictions of theoretical models.Keywords
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