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Showing 2005Show all
3 papers · 1 filter
cond-mat.mtrl-sci2005★ 619 cited
Disorder Induced Localized States in Graphene
Vitor M. Pereira, F. Guinea, J. M. B. Lopes dos Santos +2
We consider the electronic structure near vacancies in the half-filled honeycomb lattice. It is shown that vacancies induce the formation of localized states. When particle-hole sy…
math.GM2005★ 4 cited
Geometric algebra and particle dynamics
Jose B. Almeida
In a recent publication the I showed how the geometric algebra , the algebra of 5-dimensional space-time, can generate relativistic dynamics from the simple principle th…
cond-mat.str-el2005★ 10 cited
Weak ferromagnetism and spiral spin structures in honeycomb Hubbard planes
M A N Araujo, N M R Peres
Within the Hartree Fock- RPA analysis, we derive the spin wave spectrum for the weak ferromagnetic phase of the Hubbard model on the honeycomb lattice. Assuming a uniform magnetiza…