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Proceedings Paper

Quanum-dot-like composition fluctuations in near-field magneto-photoluminescence spectra of InGaAsN alloys
Author(s): Alexander M. Mintairov; P. A, Blagnov; James L. Merz; Victor M. Ustinov; A. S. Vlasov; Alexey R. Kovsh; Jyh-Shyang Wang; Li-Chung Wei; Jim Y. Chi
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Paper Abstract

A series of narrow emission lines (halfwidth 0.5 - 2 meV) corresponding to quantum-dot-like compositional fluctuations have been observed in low temperature near-field photoluminescence spectra of GaAsN and InGaAsN alloys. The estimation of the size, density, and nitrogen excess of individual compositional fluctuations (clusters) using scanning near-field magneto-spectroscopy reveals phase-separation effects in the distribution of nitrogen. We found a strong effect of In on the exciton g-factor in InGaAsN alloys.

Paper Details

Date Published: 11 June 2003
PDF: 4 pages
Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.511847
Show Author Affiliations
Alexander M. Mintairov, A.F. Ioffe Physico-Technical Institute (Russia)
Univ. of Notre Dame (United States)
P. A, Blagnov, A.F. Ioffe Physico-Technical Institute (Russia)
James L. Merz, Univ. of Notre Dame (United States)
Victor M. Ustinov, A.F. Ioffe Physico-Technical Institute (Russia)
A. S. Vlasov, A.F. Ioffe Physico-Technical Institute (Russia)
Alexey R. Kovsh, A.F. Ioffe Physico-Technical Institute (Russia)
Industrial Technology Research Institute (Taiwan)
Jyh-Shyang Wang, Industrial Technology Research Institute (Taiwan)
Li-Chung Wei, Industrial Technology Research Institute (Taiwan)
Jim Y. Chi, Industrial Technology Research Institute (Taiwan)

Published in SPIE Proceedings Vol. 5023:
10th International Symposium on Nanostructures: Physics and Technology
Zhores I. Alferov; Leo Esaki, Editor(s)

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