Cascade theory of electron capture in quantum wells
Journal Article
·
· Journal of Experimental and Theoretical Physics
A cascade theory of electron capture in shallow quantum wells, when the capture process is determined by the interaction with acoustic phonons, is constructed. In these conditions, the ejection of electrons falling into a well back to the conduction band is significant. The possibility of electron ejection is taken into account by introducing an sticking probability for electrons located in the well. Such an approach is analogous to the Lax cascade theory of electron capture at small impurity centers. Calculations have been performed for wells 3 and 4 nm in width in the Al{sub 0.05}Ga{sub 0.95}As/GaAs/Al{sub 0.05}Ga{sub 0.95}As heterostructure. The developed theory has also made it possible to describe thermal ejection of electrons from shallow quantum wells.
- OSTI ID:
- 21242023
- Journal Information:
- Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 4 Vol. 106; ISSN JTPHES; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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