Measuremenu are reponed of Auger (autoionization) spectra of AI and Kr produced by bombarding AI and Si substrates with Art and Kr* ions in the 110 eV-5 keV energy m g e . These are shown to be coflsistenl wilh the simple Doppler model suggested, for Ne on AI and Si, in a previous paper. Once corrected using the model, the observed Auger energies are shown to correspond lo lheoretical predictions produced using D-Fock calculations.

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The two-body dispersion interactions between multipoles of the hydrogen atoms have been worked out using [2,1] and [3,2] Padé approximants and generalized Casimir–Polder integral formulas. Energy coefficients which appear in the expression for the interaction energy of E2 (H–H), obtained up to the term R−16, are in agreement with those of Dalgarno and Meath.

Inverse photoemission and 3p3d giant resonance excitation in electron energy loss spectroscopy in oxidized Sc are related to 2p + 3d x-ray absorption in SC~O,. The observations are shown to be cntLsistenf with 3d states being localired in both the presence and &he absence of a COR hole. Inverse photoemission reveals 3d crystal field splilting comparable to fhat found in 2p -, 3d excitations. while 3 p 3 d excitations show in addition strong hole-electmn exchange mupling.