DA SILVA LEITE, L.G.; http://lattes.cnpq.br/4773124449888788; LEITE, Lázaro Genilson da Silva.
Résumé:
This work is devoted to the study of eletronic transport in low-dimensional quantum
systems. We studied the graphene which is a material formed by a single layer of
carbon atoms in hybridization state sp2, and shows a structure in the form of hexagons,
also called \Honeycomb lattice" . The charge carriers in graphene behave as massless
relativistc particles, obeying the Dirac Hamiltonian. However, the light velocity is replaced
by Fermi velocity (vf 106m=s). In this context, we introduce the pseudomagnetic
eld at Dirac equation, where this eld is generated by mechanic strain, which changes
the length of the bonds between atoms and a ects the way electrons move in relation to
others. We investigated the in
uence of a spatially varying pseudo magnetic eld in a 2D
electron gas in graphene, analyzing how this eld modi es the relativistic Landau levels
and what is its in
uence on the Quantum Hall E ect in the whole graphene.
