DETERMINATION OF OPTICAL CONSTANTS OF PALLADIUM AND SILVER FROM 2 TO 90 EV FROM ENERGY LOSS MEASUREMENTS

The energy loss functions Im (-1/e{open}) of Silver and Palladium are determined from energy loss experiments with 60 keV electrons. The influence of surface effects and multiple losses is discussed and the values of Im (-1/e{open}) are corrected for them. By means of Kramers-Kronig analysis the optical constants e{open}1 and e{open}2 are calculated from the energy loss function and found to be in good agreement with data derived from optical experiments by various authors. © 1969 Springer-Verlag.