A new tool for measuring island dimensions and spatial correlations in quantum dot multilayers: Raman scattering interferences

M Cazayous; J Groenen; J.R Huntzinger; A Mlayah; U Denker; O.G Schmidt

doi:10.1016/S0921-5107(01)00888-1

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A new tool for measuring island dimensions and spatial correlations in quantum dot multilayers: Raman scattering interferences

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A new tool for measuring island dimensions and spatial correlations in quantum dot multilayers: Raman scattering interferences

M Cazayous, J Groenen, J.R Huntzinger, A Mlayah, U Denker et O.G Schmidt

Materials science & engineering. B, Solid-state materials for advanced technology, Vol.88(2), pp.173-176

16/01/2002

DOI: https://doi.org/10.1016/S0921-5107(01)00888-1

Résumé

Quantum dots

Raman interferences

Spatial correlations

We present a new tool to measure island dimensions and spatial correlations in quantum dot (QD) multilayers. This approach is based on interference phenomena between the Raman scattering probability amplitudes associated with each QD. From the Raman interference envelopes we deduced mean island heights in different Si/Ge multilayer structures. From the interference contrast, we deduced the vertical correlation degree. The latter compare very well with previous transmission electron microscopy (TEM) and X-ray measurements.

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Détails

Titre: A new tool for measuring island dimensions and spatial correlations in quantum dot multilayers: Raman scattering interferences
Créateurs - sans rôle: M Cazayous - Laboratoire de Physique des Solides, Université Paul Sabatier, UMR 5477, 31062 Toulouse, France
J Groenen - Laboratoire de Physique des Solides, Université Paul Sabatier, UMR 5477, 31062 Toulouse, France
J.R Huntzinger - Laboratoire de physique des Solides
A Mlayah - Laboratoire de Physique des Solides, Université Paul Sabatier, UMR 5477, 31062 Toulouse, France
U Denker - Max-Planck-Institut für Festkörperforschung, Heisenbergstraβe 1, 70569 Stuttgart, Germany
O.G Schmidt - Max-Planck-Institut für Festkörperforschung, Heisenbergstraβe 1, 70569 Stuttgart, Germany
Détails de publication: Materials science & engineering. B, Solid-state materials for advanced technology, Vol.88(2), pp.173-176
Éditeur: Elsevier B.V
Nombre de pages: 4
Identifiants: 99162849809311
Unité académique: Laboratoire Charles Coulomb - L2C
Langue: English
Type de ressource: Journal article