Physics of the Solid State

, Volume 55, Issue 7, pp 1536-1544

First online:

Transition metal and rare-earth metal atoms on single-layer graphene: Estimations of the charge transfer and adsorption energy

  • S. Yu. DavydovAffiliated withIoffe Physical-Technical Institute, Russian Academy of Sciences Email author 

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A Hamiltonian accounting for s- and d(f)-states of adatoms has been proposed to describe adsorption of atoms of d- and f-metals on single-sheet graphene. It has been shown that s-electrons mainly contribute to the charge transfer Δn a between the adatom and graphene substrate. Analytical formulas proposed previously within the M-model of the graphene density of states are used for Δn a calculations. To estimate the adsorption energy, a simple analytical expression is proposed. Calculations are performed for 3d-, 4d-, 5d-, and 4f-adatoms. The results of calculations are compared with the data obtained by other authors.