11 June 2003 Quantum-dot-like composition fluctuations in near-field magneto-photoluminescence spectra of InGaAsN alloys
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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.
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Alexander M. Mintairov, Alexander M. Mintairov, P. A, Blagnov, P. A, Blagnov, James L. Merz, James L. Merz, Victor M. Ustinov, Victor M. Ustinov, A. S. Vlasov, A. S. Vlasov, Alexey R. Kovsh, Alexey R. Kovsh, Jyh-Shyang Wang, Jyh-Shyang Wang, Li-Chung Wei, Li-Chung Wei, Jim Y. Chi, Jim Y. Chi, } "Quantum-dot-like composition fluctuations in near-field magneto-photoluminescence spectra of InGaAsN alloys", Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.511847; https://doi.org/10.1117/12.511847
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