Orbital-selective conductance of Co adatom on the Pt(111) surface

Details Orbital-selective conductance of Co adatom on the Pt(111) surface Orbital-selective conductance of Co adatom on the Pt(111) surface

2011-06-19

arxiv.org/abs/1106.3702v2

Physical Review B 84, 193407 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

We propose an orbital-selective model for the transport and magnetic properties of the individual Co impurity deposited on the Pt(111). Using the combination of the Anderson-type Hamiltonian and the Kubo's linear response theory we show that the magnetization and dI/dV spectrum of Co adatom are originated from the 3d states of the different symmetry. A textbook expression for the spin-dependent differential conductance provides a natural connection between magnetic and transport properties of Co/Pt(111). We found that it is possible to detect and to manipulate the different 3d states of the Co adatom by tuning the spin polarization of the tip and tip-impurity distance in STM experiments.

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