Abstract
The electronic structure and magnetism of individual Dy atoms adsorbed on the graphene/Cu(111) surface is investigated using the combination of the density functional theory with the Hubbard-I approximation to the Anderson impurity model (). We find that the results of the depend on the choice of the double-counting term. For fully localized limit, the divalent adatom is found, with the total magnetic moment of . The spin and orbital magnetic moments are evaluated, and compared with the x-ray magnetic circular dichroism data. The calculated positive magnetic anisotropy energy determines the out-of-plane orientation of the Dy adatom magnetic moment, in agreement with available experimental data.
- Received 29 April 2020
- Accepted 16 July 2020
DOI:https://doi.org/10.1103/PhysRevB.102.064402
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