PHONON CASCADE THEORY.
Abstract
A generalized formulation is given of the Lax electron cascade capture model. An electron capture cross-section is obtained, via an essentially classical argument, in terms of quantum mechanical transition probabilities, which may include various suitable electron-boson interactions. The electronic potential energy, in the presence of an impurity centre, was assumed to behave as to the 9th power. Cross-sections were obtained for the electron-acoustic and optical phonon interactions. In the latter case cross-sections were obtained for both neutral (n=4) and Coulomb attractive centres (n=1), in germanium and silicon, the sticking probabilities being taken from previous literature. When comparable with earlier work, the cross-sections obtained are smaller (by at most a factor 10). New estimates include cross-sections for electron capture by neutral centres in silicon, with optical phonon emission, over a range of temperatures. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0634445
Entities
People
- E. F. Smith
- P. T. Landsberg
Organizations
- Cardiff University