14 papers
Critical currents in graphene Josephson junctions
J. Gonzalez, E. Perfetto
We study the superconducting correlations induced in graphene when it is placed between two superconductors, focusing in particular on the supercurrents supported by the 2D system.…
Quantum Hall effect in carbon nanotubes and curved graphene strips
E. Perfetto, J. Gonzalez, F. Guinea +2
We develop a long wavelength approximation in order to describe the low-energy states of carbon nanotubes in a transverse magnetic field. We show that, in the limit where the squar…
Electronic instabilities of a Hubbard model approached as a large array of coupled chains: competition between d-wave superconductivity and pseudogap phase
E. Perfetto, J. Gonzalez
We study the electronic instabilities in a 2D Hubbard model where one of the dimensions has a finite width, so that it can be considered as a large array of coupled chains. The fin…
Cooper-pair propagation and superconducting correlations in graphene
J. Gonzalez, E. Perfetto
We investigate the Cooper-pair propagation and the proximity effect in graphene under conditions in which the distance L between superconducting electrodes is much larger than the…
Quantum Hall effect in carbon nanotubes
E. Perfetto, J. Gonzalez, F. Guinea +2
We investigate the effects of a transverse magnetic field on the transport properties of carbon nanotubes, making use of a long-wavelength description in terms of Dirac fermion fie…
A theory of superconductivity in multi-walled carbon nanotubes
E. Perfetto, J. Gonzalez
We devise an approach to describe the electronic instabilities of doped multi-walled nanotubes, where each shell has in general a manifold of Fermi points. Our analysis relies on t…