Optical properties, electronic structure and London dispersion interactions for nanostructured interfacial and surficial films

نویسندگان

  • G. L. Tan
  • Roger H. French
چکیده

Nanostructured amorphous films exhibit complex thermodynamic and kinetic behavior. To understand the structure and properties of nanostructured amorphous films in silicon based ceramics (Si3N4, SiC, Si) and in SrTiO3 ceramics, we have focused on experimental studies to determine the interband electronic structure and optical properties. We use vacuum ultraviolet spectroscopy for bulk materials, and valence electron energy loss spectroscopy (VEELS) in either transmission mode in the transmission electron microscope for interfacial films, and are developing VEELS in reflection mode for surficial films. These experimental data are quantitatively analyzed using Kramers–Kronig analysis to determine the complex o t d m ©

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تاریخ انتشار 2006