Abstract
Results are presented from an experimental study of the adsorption of cesium atoms on sapphire surfaces and their photostimulated desorption. The adsorbed atoms are found to form chains on the surface which are localized near one-dimensional structural defects of the surface. One-dimensional adsorption is analyzed theoretically with different assumptions regarding the mobility of adsorbed atoms along a chain. A comparison of the theories with experimental data favors localized adsorption described in terms of a one-dimensional lattice gas model. The energy of adsorption for an isolated atom on a linear surface structural defect is 0.58 eV, while the energy of attraction between neighboring atoms in the chain is 26 meV.
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Zh. Éksp. Teor. Fiz. 112, 362–370 (July 1997)
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Bonch-Bruevich, A.M., Vartanyan, T.A., Maksimov, Y.N. et al. Adsorption of cesium atoms at structural defects on sapphire surfaces. J. Exp. Theor. Phys. 85, 200–204 (1997). https://doi.org/10.1134/1.558308
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DOI: https://doi.org/10.1134/1.558308