Role of first- and second-order processes in the anomalous temperature dependence of the extended fine structure of secondary electron spectra in 3d-metals

摘要

A theoretical description is proposed for the formation of the extended fine structures of the secondary electrons in 3d-metals with allowance for the XAFS-like scattering of the secondary electrons in the final state through the first- and second-order processes, and an electron in the intermediate state through the second-order process. It is shown that considering the first- and second-order processes, as well as the nonmonotonic behavior of the intensity of the corresponding atomic electron transitions, we are able to describe anomalous thermal features of the extended fine structure in the secondary electron spectra.