Accession Number:

ADP012810

Title:

Electric Field Dependent Dimensionality of Excitonic States in Single Quantum Well Structures with Asymmetric Barriers

Descriptive Note:

Conference proceedings

Corporate Author:

LEBEDEV PHYSICS INST MOSCOW (RUSSIA)

Report Date:

1998-06-01

Pagination or Media Count:

4.0

Abstract:

2D-3D transformation of excitonic states dimensionality with an external electric field parallel to the growth axis has been observed in GaAsAlxGa1-xAs single quantum well QW structures with asymmetric barriers. When the maximum of electronic wavefunction shifts to the lower barrier with field, the exciton binding energy starts to decrease. With further increase of field the transformation of 2D exciton to the quasi-3D exciton takes place. The latter involves a heavy hole in QW and an electron of resonant above-barrier state.

Subject Categories:

  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE