Electronic energy-density effects in ion tracks of metals
نویسندگان
چکیده
High resolution Auger-electron spectroscopy has been applied to the interaction of swift heavy ions with atomically clean metallic solids. Spectra have been taken for fast projectile electrons and for charge-state equilibrated ions at normal incidence on micro crystalline beryllium samples, Al(100) single crystals and several metallic glasses (Al87La7Ni5Zr1, Ni78B14Si8, Co66Si16B12Fe4Mo2). From the energy shift and from the Auger-line width we have extracted ion-track potentials and also electron temperatures inside ion tracks. A first determination of the angular distribution of multiple-ionization lines is presented as well. PACS:79.20.Rf,31.70.Hq,79.20.Fv,72.20.Jv,32.80.Hd,72.15.Lh keywords: electron temperature, ion-track potential, multiple ionization, neutralization, recombination, Auger decay, electron-spectra
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