Inelastic electron scattering by collective charge density excitations at the surface of a semiconductor superlattice - Hawrylak, P.; Wu, J.-W.; Quinn, J.J. (Elsevier)
Using linear response theory and the diagonal approximation we calculate exactly and analytically surface response of a semi-infinite semiconductor superlattice to an electron moving in the vacuum. This response determines the scattering process. The electron energy loss spectrum due to surface intra- and intersubband plasmons is predicted for the first time.
http://linkinghub.elsevier.com/retrieve/pii/0039-6028(86)91011-3
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