Publications (22)
Orbital Kondo effect in Cobalt-Benzene sandwich molecules
M. Karolak, D. Jacob, A. I. Lichtenstein
We study a Co-benzene sandwich molecule bridging the tips of a Cu nanocontact as a realistic model of correlated molecular transport. To this end we employ a recently developed met…
The Kondo effect in ferromagnetic atomic contacts
M. R. Calvo, J. Fernández-Rossier, J. J. Palacios +3
Iron, cobalt and nickel are archetypal ferromagnetic metals. In bulk, electronic conduction in these materials takes place mainly through the and electrons, whereas the mag…
On the origin of the quasi-particle peak in Cr(001) surfaces
L. Peters, D. Jacob, M. Karolak +2
In the spectral density of Cr(001) surfaces a sharp resonance close to the Fermi level is observed in both experiment and theory. For the physical origin of this peak two mechanism…
Mechanical, Electrical, and Magnetic Properties of Ni Nanocontacts
M. R. Calvo, M. J. Caturla, D. Jacob +2
The dynamic deformation upon stretching of Ni nanowires as those formed with mechanically controllable break junctions or with a scanning tunneling microscope is studied both exper…
Anisotropic magnetoresistance in nanocontacts
D. Jacob, J. Fernandez-Rossier, J. J. Palacios
We present ab initio calculations of the evolution of anisotropic magnetoresistance (AMR) in Ni nanocontacts from the ballistic to the tunnel regime. We find an extraordinary enhan…
Critical comparison of electrode models in density functional theory based quantum transport calculations
D. Jacob, J. J. Palacios
We study the performance of two different electrode models in quantum transport calculations based on density functional theory: Parametrized Bethe lattices and quasi-one dimension…