Seminário de Computação e Informação Quântica 

27/06/2008, 15:00 — 16:00 — Sala P4.35, Pavilhão de Matemática
Romeo de Coss, Unidad Mérida del Centro de Investigación y de Estudios Avanzados, Mexico

Graphene: the new frontier of the carbon based materials

The recent discovery of graphene has stimulated intensive study of this system revealing many of its exciting properties such as massless Dirac fermions, high mobility and coherence, and room-temperature quantum hall effect to name but a few. These properties are significant not only from a fundamental point of view, but also for technological applications. In the first part of this talk, we are presenting a revision of the electronic and transport properties of graphene, including the potential applications of graphene in solid-state quantum computing devices. In the second part, we are presenting results of ab-initio calculations of the electronic structure of strained graphene and quantum dots based on graphene. Finally, the effect of strain on the chiral tunnelling in doped graphene barriers is analyzed.