Graphene is just one monolayer of graphite, a hexagonal arrangement of carbon atoms, which has a linear dispersion relation around the Fermi\u00a0energy. Thus, its carriers can be described as massless Dirac fermions, allowing the study\u00a0of relativistic dynamics in a typical solid-state material.<\/p>\n
Graphene is one of the hottest topics in condensed matter physics due to its remarkable properties (high electron mobility, flexibility, long electron spin lifetime, potential for chemical functionality\u2026) which make it a promising material for multiple applications.<\/p>\n
Properties of carbon allotropes depend strongly on their dimensionality, geometry and topology. Cutting graphene into nanoribbons or rolling up it into nanotubes alters the electronic properties of graphene. Carbon nanotubes and\u00a0 graphene nanoribbons can be metallic or semiconducting depending on\u00a0their geometry, which has a fundamental role in other physical properties.<\/p>\n
The transport and optical properties of isolated graphene layers are also strongly affected when they are piled up one on top of the other forming multilayers graphene structures.\u00a0 Even the properties of bilayer graphene depend on the atomic stacking between the layers.<\/p>\n
Graphene is isolated from graphite by mechanical exfoliation and similar techniques used for obtaining graphene layers have been also applied to obtain other two-dimensional crystal structures as hexagonal Boron Nitride (hBN) or transition metal dichalcogenides. Once isolated, atomic layers of di\ufb00erent 2D crystals can be reassembled layer by layer to create heterostructures with the designed electrical properties. This has opened a new field named graphene based Van der Walls heterostructures.<\/p>\n
Our work on carbon based structures has been focused on the electric and transport properties of graphene, nanotubes and nanoribbons. We have also studied properties of bilayer graphene with different atomic stacking.<\/p>\n
Recent publications<\/strong><\/p>\n Dielectric screening and plasmons in AA-stacked bilayer graphene<\/a> Interplay between symmetry and spin-orbit coupling on graphene nanoribbons<\/a> Grain boundaries with octagonal defects in graphene nanoribbons and nanotubes<\/a> Electronic properties of twisted trilayer graphene<\/a> Gapped phase in AA<\/i>-stacked bilayer graphene<\/a> Graphene is just one monolayer of graphite, a hexagonal arrangement of carbon atoms, which has a linear dispersion relation around the Fermi\u00a0energy. Thus, its carriers can be described as massless Dirac fermions, allowing the study\u00a0of relativistic dynamics in a typical solid-state material. Graphene is one of the hottest topics in condensed matter physics due to … Continue reading Graphene and carbon nanotubes<\/span>
\nRafael Rold\u00e1n and Luis Brey
\nPhys. Rev. B 88<\/b>, 115420 (2013)<\/p>\n
\nHern\u00e1n Santos, M. C. Mu\u00f1oz, M. P. L\u00f3pez-Sancho, and Leonor Chico
\nPhys. Rev. B 87<\/b>, 235402 (2013)<\/p>\n
\nM. Pelc, L. Chico, A. Ayuela, and W. Jask\u00f3lski
\nPhys. Rev. B 87<\/b>, 165427 (2013)<\/p>\n
\nE. Su\u00e1rez Morell, M. Pacheco, L. Chico, and L. Brey
\nPhys. Rev. B 87<\/b>, 125414 (2013)<\/p>\n
\nL. Brey and H. A. Fertig
\nPhys. Rev. B 87<\/b>, 115411 (2013)<\/p>\n","protected":false},"excerpt":{"rendered":"