Physical nature of the angular dependence of the intensity of the excitation of bulk plasmons by fast electrons
Libenson B. N. , Rumyantsev V. V.
A theory is derived for the excitation of bulk plasmons. A common formalism is used to incorporate the transition radiation of bulk plasmons and the effect of the surface-plasmon excitation channel on the excitation of the bulk plasmons. It follows from this theory that the angular dependence of the rate of excitation of bulk plasmons is extremely sensitive to the particular parameter values of the material.