STRONG PCI-EFFECT IN THE EXCITATION OF Cu-SURFACE BY ELECTRON IMPACT

V.M.Mikoushkin

A.F.Ioffe Physical-Technical Institute, Russian Academy of Sciences,
St.Petersburg, Russia

Strong angle dependent PCI-effect  in the excitation of Cu-surface by
electron impact has been revealed by measuring Auger spectra under
irradiation by x-rays (hn = 1486.6 eV) and by electrons of different
energies. This effect results in Auger-line shift which is comparable to a
typical chemical one.