Screening of polar interaction in quasi-two-dimensional semiconductor microstructures
- 15 April 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 31 (8), 5536-5538
- https://doi.org/10.1103/physrevb.31.5536
Abstract
The effect of free-carrier screening on polarons in semiconductor heterostructures and quantum wells is considered with particular reference to GaAs-based experimental systems. It is shown that screening has an appreciable effect on quantities like the polaronic binding energy and the effective-mass renormalization as well as on the polar scattering rate. Different models for the screened polar interaction are compared quantitatively and the importance of using wave-vector-dependent screening in the theory is established.Keywords
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