Abstract
Changes in the charge of adatoms and the substrate work function have been calculated using the Anderson-Newns model for the potassium/graphite system. The results of calculations are in good agreement with the available experimental data. It is established that there is electron transfer from K adatoms to the graphite substrate, which leads to a decrease in the work function.
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Original Russian Text © S.Yu. Davydov, 2009, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 35, No. 18, pp. 28–33.