Plasmon dispersion and linewidth in aluminium
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Plasmon dispersion in Al is estimated using the expression for the dynamic structure function,S pl(K,ω), corresponding to the plasmon excitations in a many-electron system derived earlier. An evaluation of its plasmon linewidth is also presented. It is observed that for Al both the dispersion and linewidth agree fairly well with experiments.
KeywordsDynamic structure function one-plasmon propagator dielectric function synchrotron radiation pair correlation function
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