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Articles you may be interested inElectronic states of monatomic layers of alkali and rare earth metals adsorbed on graphene surfaces Low Temp.An analytical model is described in which the time-averaged charge of adsorbed particles is a function of the energy of transition between atomic and ionic states, as in a thermally ionized gas. This relation is used to determine the dipole moment of the adsorbed layer, including the effect of depolarization by adjacent charges. An expre~sion is ob~ained which relates the emission properties to the temperature, degree of surface coverage, and ?aslc 'pr~pertle~ of the :ubst:ate and adsorbate. Through estimation of the atom adsorption energy, a relatIOnship IS obtamed whIch gIVes a good correlation of most available data for the emission properties of surfaces immersed in cesium vapor.