Mean free path limitation of conduction electrons and extinction efficiencies of graphite grains |
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| Authors: | N C Wickramasinghe T Lukes M J Dempsey |
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| Institution: | (1) Dept. of Applied Mathematics and Astronomy, University College, Cardiff, Wales |
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| Abstract: | An extended Drude theory taking account of the limited free path of conduction electrons in small particles is used to calculate size dependent complex refractive indices of graphite spheres from bulk refractive index data. The size dependent refractive indices are then used in conjunction with the Mie theory to compute mean extinction efficiencies of graphite spheres. Significant departures from earlier results are found. |
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