1106.3702 (V. V. Mazurenko et al.)

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

V. V. Mazurenko, S. N. Iskakov, M. V. Valentyuk, A. N. Rudenko, A. I. Lichtenstein

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.

View original: http://arxiv.org/abs/1106.3702