Self-consistent simulation of corrugated layered structures

T. Kerkhoven, M. Raschke, U. Ravaioli

Research output: Contribution to journalArticlepeer-review

Abstract

An efficient self-consistent 2-D Schrödinger/Poisson solver, including shifted periodic boundary conditions, is used to obtain the wavefunctions and energy levels in the quantum wires formed at the corners of periodic saw-tooth structures consisting of layers of Al1-xGaxAs and GaAs materials. We find that the formation of a quantum wire at the corners of the GaAs layer is very sensitive to the physical parameters of the neighboring Al1-xGaxAs layers. Simple potential models yield solutions which are qualitatively very different from self-consistent results. Electron population build-up in the GaAs region between the corners can be better controlled by using asymmetric doping. A direct consequence of the asymmetry is that in most cases there is electron confinement only at every other corner.

Original languageEnglish (US)
Pages (from-to)505-508
Number of pages4
JournalSuperlattices and Microstructures
Volume12
Issue number4
DOIs
StatePublished - 1992

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Self-consistent simulation of corrugated layered structures'. Together they form a unique fingerprint.

Cite this