An Analytic Kinetic Approach to Zener Interminiband Transitions in Superlattices
Abstract
Starting from an equation-of-motion analysis of the density matrix, phenomenological kinetic equations are derived that allow a study of semiclassical intraband and quantum-mechanical tunneling contributions to the current densities. An analytical expression is obtained, which describes the field dependence of the electron densities in the upper and lower minibands. It is shown that a population inversion does not occur as long as the scattering time for thermal generation is larger than the interminiband relaxation time. Numerical results for the current density are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 23, 2000
- Accession Number
- ADP013050
Entities
People
- P. Kleinert
- V. V. Bryksin
Organizations
- Russian Academy of Sciences