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Concentration dependence of the charge of atoms adsorbed on single-sheet graphene

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Abstract

Simple schemes for calculating the dependences of the charge Z a of adatoms on their coverage of a single graphene sheet are developed with allowance for the dipole-dipole repulsion. The proposed schemes are applied to the adsorption of alkali metals and atomic hydrogen. It is established that an increase in the adsorption coverage leads to a decrease in the adatom charge, which concerns both the band and local contributions to this value.

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Authors and Affiliations

  1. Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    S. Yu. Davydov

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  1. S. Yu. Davydov
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Correspondence to S. Yu. Davydov.

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Original Russian Text © S.Yu. Davydov, 2012, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2012, Vol. 38, No. 4, pp. 41–46.

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Davydov, S.Y. Concentration dependence of the charge of atoms adsorbed on single-sheet graphene. Tech. Phys. Lett. 38, 175–177 (2012). https://doi.org/10.1134/S1063785012020216

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  • DOI: https://doi.org/10.1134/S1063785012020216

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