DENSITY-MATRIX AND QUANTUM-MOMENT STUDIES OF SINGLE-BARRIER AND MULTIPLE-BARRIER STRUCTURES

Authors
GRUBIN HL GOVINDAN TR MORRISON BJ STROSCIO MA
Citation
Hl. Grubin et al., DENSITY-MATRIX AND QUANTUM-MOMENT STUDIES OF SINGLE-BARRIER AND MULTIPLE-BARRIER STRUCTURES, Semiconductor science and technology, 7(3B), 1992, pp. 434-438
Citations number
5
Journal title
Semiconductor science and technology → ACNP
ISSN journal
02681242
Volume
7
Issue
3B
Year of publication
1992
Pages
434 - 438
Database
ISI
SICI code
0268-1242(1992)7:3B<434:DAQSOS>2.0.ZU;2-G
Abstract
The time-dependent Liouville equation for the density matrix in the co ordinate representation, incorporating scattering effects through a qu asi-Fermi level, and Poisson's equation have been solved numerically f or a single- and double-barrier structure using algorithms based on 'c haracteristics', and show significant charge accumulation on the emitt er side of the barrier, as well as significant charge screening in mul tiple-barrier structures.