Abstract
The effect of temperature on an adsorption system was considered in terms of the Anderson-Newns Hamiltonian. Both static effects associated with thermal expansion and the increase of the substrate and adsorbate atomic vibration amplitude with temperature were taken into account. Analytic expressions for the variation of the work function of the system with temperature were derived for the case of low coverages in the linear-in-temperature approximation. The results obtained are compared with experimental data on the adsorption of europium atoms on the (100) surface of tungsten.
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