Accession Number : AD0641390

Title :   TIME PERIODIC SOLUTIONS OF TRANSPORT-AND POISSON-EQUATIONS FOR LAYERLIKE FIELD INHOMOGENEITIES.

Descriptive Note : Technical rept.,

Corporate Author : DELAWARE UNIV NEWARK DEPT OF PHYSICS

Personal Author(s) : Boer,K. W.

Report Date : 1966

Pagination or Media Count : 45

Abstract : Time dependent solutions of the Poisson and transport equations containing drift and diffusion for the case of layerlike fiel inhomogeneities propagating underformed and with constant velocity through a crystal, are discussed in terms of an analysis of their projections in the n-E plane. Two principal models are discussed: one for a trap controlled cyrstal (CdS type), and the other for a trap-free crystal (GaAs type, Gunn effect) for field dependent recombination or field dependent mobility. It is found that, in addition to the 'triangular' domains, periodic propagating solutions can exist. Conditions on the value of the layer velocity and the current are derived. (Author)

Descriptors :   (*CRYSTALS, *TRANSPORT PROPERTIES), SEMICONDUCTORS, FIELD THEORY, ELECTRON DENSITY, DIFFERENTIAL EQUATIONS

Subject Categories : Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE