Browsing Artículos 2014 by Author "Foa Torres, Luis Eduardo Francisco"

Now showing items 1-5 of 5

    • Floquet chiral edge states in graphene 

      Pérez Piskunow, Pablo Matías; Usaj, Gonzalo; Balseiro, Carlos A.; Foa Torres, Luis Eduardo Francisco (2014)
      We report on the emergence of laser-induced chiral edge states in graphene ribbons. Insights on the nature of these Floquet states is provided by an analytical solution which is complemented with numerical simulations of ...

    • Irradiated graphene as a tunable Floquet topological insulator 

      Usaj, Gonzalo; Pérez Piskunow, Pablo Matías; Foa Torres, Luis Eduardo Francisco; Balseiro, Carlos A. (2014)
      In the presence of a circularly polarized mid-infrared radiation graphene develops dynamical band gaps in its quasienergy band structure and becomes a Floquet insulator. Here, we analyze how topologically protected edge ...

    • Multiterminal conductance of a floquet topological insulator 

      Foa Torres, Luis Eduardo Francisco; Pérez Piskunow, Pablo Matías; Balseiro, Carlos A.; Usaj, Gonzalo (2014)
      We report on simulations of the dc conductance and quantum Hall response of a Floquet topological insulator using Floquet scattering theory. Our results reveal that laser-induced edge states lead to quantum Hall plateaus ...

    • On the nature of defects in liquid-phase exfoliated graphene 

      Bracamonte, María Victoria; Lacconi, Gabriela Inés; Urreta, Silvia Elena; Foa Torres, Luis Eduardo Francisco (2014)
      Liquid-phase exfoliation is one of the most promising routes for large-scale production of multilayer graphene dispersions. These dispersions, which may be used in coatings, composites, or paints, are believed to contain ...

    • Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling 

      Ramos Andrade, Juan Pablo; Foa Torres, Luis Eduardo Francisco; Orellana, P. A.; Apel, Víctor Marcelo (2014)
      We consider the generation of a pure spin-current at zero bias voltage with a single time-dependent potential. To such end we study a device made of a mesoscopic ring connected to electrodes and clarify the interplay between ...