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Paper
Surface plasmon scattering on flat surfaces at grazing incidence
Abstract
This paper reports a study of surface plasmon excitation on the flat, oxide-covered aluminum surface, using high energy electrons which pass the surface at a finite, and sometimes large, impact parameter. The scattering probability dependence on impact parameter agrees qualitatively with classical, quasi-static calculations, which assume that the materials are characterized by homogeneous dielectric constants. A broad intensity maximum near 16 eV is identified as a surface plasmon made possible by the frequency dependence of the aluminum oxide dielectric constant. © 1983.