Motivated by the recent experimental realization of twisted trilayer graphene and observed superconductivity that is associated with its flat bands at specific angles, we study under influence different forms light in non-interacting limit. Specifically, four types stacking configurations a single layer. In all cases, impact circularly polarized longitudinal coming from waveguide. We derive eff...

Phosphorene, a monolayer of black phosphorus, is promising for nanoelectronic applications not only because it is a natural p-type semiconductor but also because it possesses a layer-number-dependent direct bandgap (in the range of 0.3 to 1.5 eV). On basis of the density functional theory calculations, we investigate electronic properties of the bilayer phosphorene with different stacking order...

We study the emergence of superconductivity in rhombohedral trilayer graphene due purely to long-range Coulomb repulsion. This repulsive-interaction-driven phase is significantly different from those found twisted bilayer and graphenes. In latter case, nontrivial momentum-space geometry Bloch wavefunctions leads an effective attractive electron-electron interaction; this allows for less modulat...

Twisted graphene multilayers exhibit strongly correlated insulating states and superconductivity due to the presence of ultraflat bands near charge neutral point. In this paper, response lattice relaxation a magnetic field in twisted trilayer (tTLG) with different stacking arrangements is investigated by using full tight-binding model. We show that relaxations are indispensable for understandin...

Submitted for the MAR08 Meeting of The American Physical Society Electron states of monoand bilayer graphene on SiC probed by STM FRANÇOIS VARCHON, PIERRE MALLET, CÉCILE NAUD, Institut NEEL CNRS/UJF, 25 rue des Martyrs BP166, 38042 Grenoble, CLAIRE BERGER, The Georgia Institute of Technology, Atlanta, Georgia 30332-0430; Institut NEEL CNRS/UJF, 25 rue des Martyrs BP166, 38042 Grenoble, LAURENCE...

The recent experimental discovery of spin-valley symmetry breaking phases and superconductivity in rhombohedral trilayer graphene has generated much excitement. This research attempts to provide theoretical understanding these phases. A prominent feature the system is existence van Hove singularities electronic band structure. Under interactions, states exhibit a high tendency toward intervalle...