Quantum Transport Theory for Semiconductor Superlattices
Abstract
The Kadanoff Baym Keldysh nonequilibnum Greens function technique is used to study quantum transport within the lowest miniband of semiconductor superlattices (SLs) under high electric fields. Both intra-collisional field effects (ICFEs) and lifetime broadening are taken into account. An inevitable extension of the generalized Kadanoff Baym ansatz is discussed. The collisional broadening of electro-phonon resonances due to scattering on impurities is calculated. Even if the mean impurity scattering strength is considerably smaller than the miniband width, the oscillatory current anomalies. which result from ICFEs. are completely smeared out.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 18, 1999
- Accession Number
- ADP012876
Entities
People
- P. Kleinert
- V. V. Bryksin
Organizations
- Russian Academy of Sciences