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- W2023709816 abstract "Abstract An ultrathin, a few monolayers (MLs) thick Si δ-layer, has been embedded in GaAs. The Si δ-layer properties have been electrically and structurally characterized. A conductivity transition has been observed, when going from free carrier transport in thin (⩽1 ML) ordered δ-layers to the disordered conditions for Si δ-layers thicker than 4 MLs. Two novel emission bands are observed in photoluminescence (PL) for Si δ-layers in the width range 1–4 MLs, but solely at below bandgap excitation. The pronounced 2D properties of these δ-layers have been clearly demonstrated by an observed blue shift of the PL characterization as the thickness of the Si δ-layer is reduced. The so-derived results on the transition energies and the electronic structure are in good agreement with theoretical predictions obtained by a self-consistent approach." @default.
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- W2023709816 date "1998-07-01" @default.
- W2023709816 modified "2023-09-27" @default.
- W2023709816 title "Properties of Si δ-layers embedded in GaAs" @default.
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- W2023709816 doi "https://doi.org/10.1016/s1386-9477(98)00052-6" @default.
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