126 citations · 224 across the 7 of their papers we have counts for
7 papers
Lattice Green's function approach to the solution of the spectrum of an array of quantum dots and its linear conductance
N. M. R. Peres, T. Stauber, J. M. B. Lopes dos Santos
In this paper we derive general relations for the band-structure of an array of quantum dots and compute its transport properties when connected to two perfect leads. The exact lat…
Double Exchange Model at Low Densities: Magnetic Polarons and Coulomb Suppressed Phase Separation
Vitor M. Pereira, J. M. B. Lopes dos Santos, Antonio H. Castro Neto
We consider the double exchange model at very low densities. The conditions for the formation of self-trapped magnetic polarons are analyzed using an independent polaron model. The…
Magnetic structure at zigzag edges of graphene bilayer ribbons
Eduardo V. Castro, N. M. R. Peres, J. M. B. Lopes dos Santos
We study the edge magnetization of bilayer graphene ribbons with zigzag edges. The presence of flat edge-state bands at the Fermi energy of undoped bilayer, which gives rise to a s…
Phenomenological study of the electronic transport coefficients of graphene
N. M. R. Peres, J. M. B. Lopes dos Santos, T. Stauber
Using a semi-classical approach and input from experiments on the conductivity of graphene, we determine the electronic density dependence of the electronic transport coefficients…
The Double Exchange Model at Low Densities
Vitor M. Pereira, J. M. B. Lopes dos Santos, A. H. Castro Neto
We obtain the phase diagram of the double-exchange model at low electronic densities in the presence of electron-electron interactions. The single particle problem and its extensio…
One-Electron Singular Branch Lines of the Hubbard Chain
J. M. P. Carmelo, K. Penc, L. M. Martelo +5
The momentum and energy dependence of the weight distribution in the vicinity of the one-electron spectral-function singular branch lines of the 1D Hubbard model is studied for all…