24.8k citations
- Boston UniversityUS21 papers
- Instituto de Ciencia de Materiales de MadridES15 papers
- Universidade do PortoPT14 papers
- Consejo Superior de Investigaciones CientíficasES8 papers
- Instituto Superior TécnicoPT5 papers
- University of California, RiversideUS4 papers
- University of ManchesterGB4 papers
- Universidad Autónoma de MadridES3 papers
- University of AveiroPT3 papers
- University of OxfordGB3 papers
- Chinese University of Hong KongHK2 papers
- Linköping UniversitySE2 papers
6 papers · 1 filter
Biased bilayer graphene: semiconductor with a gap tunable by electric field effect
Eduardo V. Castro, K. S. Novoselov, S. V. Morozov +6
We demonstrate that the electronic gap of a graphene bilayer can be controlled externally by applying a gate bias. From the magneto-transport data (Shubnikov-de Haas measurements o…
Transmission through a biased graphene bilayer barrier
Johan Nilsson, A. H. Castro Neto, F. Guinea +1
We study the electronic transmission through a graphene bilayer in the presence of an applied bias between layers. We consider different geometries involving interfaces between bot…
The hidden geometric character of relativistic quantum mechanics
Jose B. Almeida
The presentation makes use of geometric algebra, also known as Clifford algebra, in 5-dimensional spacetime. The choice of this space is given the character of first principle, jus…
Obtaining a class of Type O pure radiation metrics with a cosmological constant, using invariant operators
S. Brian Edgar, M. P. Machado Ramos
Using the generalised invariant formalism we derive a class of conformally flat spacetimes whose Ricci tensor has a pure radiation and a Ricci scalar component. The method used is…
Electronic states and Landau levels in graphene stacks
F. Guinea, A. H. Castro Neto, N. M. R. Peres
We analyze, within a minimal model that allows analytical calculations, the electronic structure and Landau levels of graphene multi-layers with different stacking orders. We find,…
Dirac Fermion Confinement in Graphene
N. M. R. Peres, A. H. Castro Neto, F. Guinea
We study the problem of Dirac fermion confinement in graphene in the presence of a perpendicular magnetic field B. We show, analytically and numerically, that confinement leads to…