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  • Title: Electron standing waves on the GaN(0001)-pseudo (1 × 1) surface: a FT-STM study at room temperature.
    Author: Sun GF, Liu Y, Qi Y, Jia JF, Xue QK, Weinert M, Li L.
    Journal: Nanotechnology; 2010 Oct 29; 21(43):435401. PubMed ID: 20890020.
    Abstract:
    We report the direct imaging of standing waves on a GaN(0001)-pseudo (1 × 1) metallic surface, which consists of two atomic Ga layers with the top layer incommensurate. Two types of periodic oscillation are observed by scanning tunneling microscopy at room temperature. The longer wavelength standing waves are due to electron scattering by dislocation-induced steps and two-dimensional InN islands. The localized shorter wavelength waves are attributed to a structural transition of the incommensurate Ga bilayer to a tetrahedral Ga bilayer after the growth of the InN islands.
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