Messung der Energieverlustspektren von Aluminium- und Silberfolien mit hoher Auflösung |
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Authors: | J. Geiger K. Wittmaack |
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Affiliation: | 1. I. Physikalisches Institut der Technischen Universit?t Berlin, Deutschland
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Abstract: | The energy loss spectra of polycrystalline aluminium and silver foils have been measured with high resolution. For the plasmon energy of aluminium 14.97 eV is obtained. The half width of the plasmon peak is 0.60 eV corresponding to a relaxation time τ=1.1×10?15 sec in fair agreement with optical data. In silver films of certain thicknesses the surface plasmon peak and the plasmon peak can be separated in the energy loss spectrum. The values of the energy losses are 3.64 and 3.78 eV respectively. |
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