14 citations · 38 across the 5 of their papers we have counts for
5 papers
Kondo physics of magnetic adatoms on metallic surfaces when the onset of the surface conduction density of states crosses the Fermi level
J. Fernández, P. Roura-Bas
We study the role of the onset of Shockley states, , belonging to (111) surfaces of Cu, Ag and Au in the Kondo effect when a magnetic impurity is deposited on them. When …
Kondo temperature when the Fermi level is near a step in the conduction density of states
J. Fernández, A. A. Aligia, P. Roura-Bas +1
The (111) surface of Cu, Ag and Au is characterized by a band of surface Shockley states, with constant density of states beginning slightly below the Fermi energy. These states as…
Qualitative breakdown of the non-crossing approximation for the symmetric one-channel Anderson impurity model at all temperatures
C. N. Sposetti, L. O. Manuel, P. Roura-Bas
The Anderson impurity model is studied by means of the self-consistent hybridization expansions in its non-crossing (NCA) and one-crossing (OCA) approximations. We have found that…
Non-Fermi liquid behaviour in non-equilibrium transport through Co doped Au chains connected to four-fold symmetric leads
S. Di Napoli, P. Roura-Bas, Andreas Weichselbaum +1
We calculate the differential conductance as a function of temperature and bias voltage, , through Au monoatomic chains with a substitutional Co atom as a magnetic impurity…
Crystal-field splittings in CeX (X= N, P, As, Sb, Bi) compounds
P. Roura-Bas, V. Vildosola, A. M. Llois
The unusual and interesting physical properties of rare earth intemetallic compounds have their origin in the combination of strongly correlated 4f states and their hybridization w…