Accession Number:

ADP012876

Title:

Quantum Transport Theory for Semiconductor Superlattices

Descriptive Note:

Conference proceedings

Corporate Author:

RUSSIAN ACADEMY OF SCIENCES SAINT PETERSBURG IOFFE PHYSICAL-TECHNICAL INST

Personal Author(s):

Report Date:

1999-06-18

Pagination or Media Count:

3.0

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.

Subject Categories:

  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE