Influence of the electron-hole spatial separation on the magnetoluminescence measurements of the fractional-quantum-Hall-effect energy gaps

authored by

I. V. Kukushkin, R. J. Haug, K. Von Klitzing, K. Eberl, K. Tötemeyer

Abstract

Specially designed single GaAs-AlxGa1-xAs heterojunctions with two monolayers of acceptors located at different distances from the interface have been studied by luminescence experiments. Using a time-resolved technique we distinguished the two channels of luminescence corresponding to radiative recombination of two-dimensional electrons with holes bound to acceptors from these two monolayers. Comparison of the fractional-quantum-Hall-effect (FQHE) energy gaps derived from these two recombination channels allows us to measure the corrections to the FQHE gaps associated with the finite e-h spatial separation.

External Organisation(s)

Max Planck Institute for Solid State Research (MPI-FKF)

Type

Article

Journal

Physical Review B

Volume

50

Pages

11259-11262

No. of pages

4

ISSN

0163-1829

Publication date

01.01.1994

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Condensed Matter Physics

Electronic version(s)

https://doi.org/10.1103/PhysRevB.50.11259 (Access: Unknown)