Ma. Huels et al., COUPLING OF THE DISSOCIATIVE ELECTRON-ATTACHMENT RESONANCES OF CO2 TOANIONIC EXCITATIONS IN RARE-GAS SOLIDS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 101(1-2), 1995, pp. 203-206
Significant sharp enhancements(FWHM less than or equal to 0.5 eV) are
observed in electron stimulated desorption O- yields, obtained from sm
all quantities of CO2 physisorbed on thick rare gas substrate films. T
he enhancements are positioned 0.3-0.4 eV below the lowest substrate e
xciton energy, and are attributed to a coupling of the (electron plus
exciton) core-excited anion resonances of the rare gas atoms to the di
ssociative temporary molecular anion states of the co-adsorbed CO2 at
the solid's surface. This causes a transfer of the charge and excitati
on energy to the co-adsorbate.