24.8k citations
- Boston UniversityUS31 papers
- Instituto de Ciencia de Materiales de MadridES15 papers
- Universidade do PortoPT15 papers
- University of LisbonPT15 papers
- University of ManchesterGB14 papers
- Universidad Autónoma de MadridES12 papers
- University of OxfordGB12 papers
- Queen Mary University of LondonGB11 papers
- Radboud University NijmegenNL11 papers
- Universidade Federal do Rio de JaneiroBR11 papers
- University of CoimbraPT11 papers
- Indiana University BloomingtonUS10 papers
23 papers · 1 filter
Gaped graphene bilayer: disorder and magnetic field effects
Eduardo V. Castro, N. M. R. Peres, J. M. B. Lopes dos Santos
Double layer graphene is a gapless semiconductor which develops a finite gap when the layers are placed at different electrostatic potentials. We study, within the tight-biding app…
Charge and Spin Transport in the One-dimensional Hubbard Model
Shi-Jian Gu, Nuno M. R. Peres, Jose M. P. Carmelo
In this paper we study the charge and spin currents transported by the elementary excitations of the one-dimensional Hubbard model. The corresponding current spectra are obtained b…
Low density ferromagnetism in biased bilayer graphene
Eduardo V. Castro, N. M. R. Peres, T. Stauber +1
We compute the phase diagram of a biased graphene bilayer. The existence of a ferromagnetic phase is discussed with respect both to carrier density and temperature. We find that th…
Role of symmetry in the interplay of T=0 quantum-phase transitions with unconventional T>0 transport properties in integrable quantum lattice systems
Jose. M. P. Carmelo, Shi-Jian. Gu, Nuno. M. R. Peres
We show that a generalized charge SU(2) symmetry of the one-dimensional (1D) Hubbard model in an infinitesimal flux generates half-filling states from metallic states which lea…
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…
Avoiding closed timelike curves with a collapsing rotating null dust shell
Filipe C. Mena, Jose Natario, Paul Tod
We present an idealised model of gravitational collapse, describing a collapsing rotating cylindrical shell of null dust in flat space, with the metric of a spinning cosmic string…