150 citations · 312 across the 13 of their papers we have counts for
13 papers
Graphene Nano-Ribbons: Major differences in the fundamental gap as its length is increased either in the zig-zag or the armchair directions
J. A. Vergés, G. Chiappe, E. Louis
Controlling the forbidden gap of graphene nano-ribbons (GNR) is a major challenge that has to be attained if this attractive material has to be used in micro- and nano-electronics.…
The role of potassium orbitals in the metallic behavior of K3picene
G. Chiappe, E. Louis, A. Guijarro +2
Detailed electronic structure calculations of picene clusters doped by potassium modeling the crystalline K3picene structure show that while two electrons are completely transferre…
Transport Regimes in a Double Quantum Dot Device
L. Costa Ribeiro, I. J. Hamad, G. Chiappe +1
We analyze the transport properties of a double quantum dot device with both dots coupled to perfect conducting leads and to a finite chain of N non-interacting sites connecting bo…
Anomalous Kondo Spin Splitting in Quantum Dots
J. M. Aguiar Hualde, G. Chiappe, E. V. Anda
The Zeeman splitting of localized electrons in a quantum dot in the Kondo regime is studied using a new slave-boson formulation. Our results show that the Kondo peak splitting depe…
Finite size effects and localization properties of disordered quantum wires with chiral symmetry
G. Chiappe, M. J. Sánchez
Finite size effects in the localization properties of disordered quantum wires are analyzed through conductance calculations. Disorder is induced by introducing vacancies at random…
Interaction between Kondo impurities in a quantum corral
G. Chiappe, A. Aligia
We calculate the spectral densities for two impurities inside an elliptical quantum corral using exact diagonalization in the relevant Hilbert subspace and embedding into the rest…