Alkali metal adsorption on the gallium arsenide surface: A change in the work function |
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| Authors: | S Yu Davydov A V Pavlyk |
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| Institution: | (1) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(2) St. Petersburg State Electrotechnical University (LéTI), ul. Prof. Popova 5, St. Petersburg, 197376, Russia |
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| Abstract: | A change in the work function when Cs atoms are adsorbed on the GaAs(100) surface and K, Rb, and Cs atoms are adsorbed on the GaAs(110) surface is calculated with a simple model. The model includes both dipole-dipole interaction of adatoms and broadening of their quasi-levels due to exchange effects. The results of calculation are in good agreement with experimental data. |
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