Browsing by Author "Foa Torres, Luis Eduardo Francisco"

Now showing items 1-8 of 8

    • Efectos de la radiación en las propiedades eléctricas del grafeno : estados topológicos de Floquet inducidos por láser 

      Pérez Piskunow, Pablo Matías (2015-12)
      Esta tesis está dedicada al estudio teórico del grafeno iluminado por un láser intenso. Nos enfocamos en efectos no perturbativos de la luz sobre el material, utilizando la teoría de Floquet. Mostramos cómo un láser puede ...

    • 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 ...

    • Microestructura y magnetotransporte en el sistema Cu-Co 

      Núñez Coavas, Henry (2019-08-28)
      Se caracterizó la magnetorresistencia puramente granular en el sistema Cu-Co, sin contribuciones asociadas a una descomposición espinodal ni de fases laminares precipitadas discontinuamente. Se encontró que en este sistema, ...

    • 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 ...

    • Transporte de carga en nanoestructuras de carbono en presencia de defectos 

      Ingaramo, Lucas Hernán (2016-10-17)
      En esta tesis se presenta un estudio de diferentes aspectos del transporte de carga y valle en nanoestructuras basadas en carbono y la influencia de defectos en el material. La tesis esta dividida en dos bloques. La primera ...