Raman study of the topology of InAs/GaAs self-assembled quantum dots
Identifieur interne : 000C35 ( Russie/Analysis ); précédent : 000C34; suivant : 000C36Raman study of the topology of InAs/GaAs self-assembled quantum dots
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Abstract
The topology of self-assembled InAs/GaAs quantum dots was studied by resonant Raman scattering caused by the interface modes localized near the edges of the dots. Evidences were found that on both sides of the InAs layer containing the dots, their topologies show some resemblances. In addition, in the multilayered systems the evidence of the coalescence of the dots (which form vertical columns) in neighbor layers separated by the distance smaller than 25 monolayers was obtained. © 1999 American Institute of Physics.
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<front><div type="abstract" xml:lang="en">The topology of self-assembled InAs/GaAs quantum dots was studied by resonant Raman scattering caused by the interface modes localized near the edges of the dots. Evidences were found that on both sides of the InAs layer containing the dots, their topologies show some resemblances. In addition, in the multilayered systems the evidence of the coalescence of the dots (which form vertical columns) in neighbor layers separated by the distance smaller than 25 monolayers was obtained. © 1999 American Institute of Physics.</div>
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