168 citations · 1.8k across the 31 of their papers we have counts for
10 papers · 1 filter
The electronic structure of a doped Mott-Hubbard surface
Mattia Iannetti, Silvio Modesti, Giovanni Di Santo +8
The Sn/Si(111)-({\sqrt}3{\times}{\sqrt}3)R30° surface, a 2D Mott insulator, has long been predicted and then found experimetally to metallize and even turn superconducting upon bor…
Superconductivity induced by the inter-valley Coulomb scattering in a few layers of graphene
Tommaso Cea
We study the inter-valley scattering induced by the Coulomb repulsion as a purely electronic mechanism for the origin of superconductivity in few layers of graphene. The pairing is…
Terahertz displacive excitation of a coherent Raman-active phonon in VO
Flavio Giorgianni, Mattia Udina, Tommaso Cea +7
Nonlinear processes involving frequency-mixing of light fields set the basis for ultrafast coherent spectroscopy of collective modes in solids. In certain semimetals and semiconduc…
Coulomb interaction, phonons, and superconductivity in twisted bilayer graphene
Tommaso Cea, Francisco Guinea
The polarizability of twisted bilayer graphene, due to the combined effect of electron-hole pairs, plasmons, and acoustic phonons is analyzed. The screened Coulomb interaction allo…
Band structure of twisted bilayer graphene on hexagonal boron nitride
Tommaso Cea, Pierre A. Pantaleon, Francisco Guinea
The effect of an hexagonal boron nitride (hBN) layer close aligned with twisted bilayer graphene (TBG) is studied. At sufficiently low angles between twisted bilayer graphene and h…
Band structure and insulating states driven by the Coulomb interaction in twisted bilayer graphene
Tommaso Cea, Francisco Guinea
We analyze the phase diagram of twisted graphene bilayers near a magic angle. We consider the effect of the long range Coulomb interaction, treated within the self consistent Hartr…