42 citations · 88 across the 4 of their papers we have counts for
14 papers
Topological Phases in Triangular Lattices of Ru Adsorbed on Graphene: ab-initio calculations
C. Mera Acosta, Matheus P. Lima, R. H. Miwa +2
We have performed an ab initio investigation of the electronic properties of the graphene sheet adsorbed by Ru adatoms (Ru/graphene). For a particular set of triangular arrays of R…
Interfaces between buckling phases in Silicene: Ab initio density functional theory calculations
Matheus P. Lima, A. Fazzio, Antonio J. R. da Silva
The buckled structure of silicene leads to the possibility of new kinds of line defects that separate regions with reversed buckled phases. In the present work we show that these n…
Spin Caloritronics in graphene with Mn
Alberto Torres, Matheus P. Lima, A. Fazzio +1
We show that graphene with Mn adatoms trapped at single vacancies feature spin-dependent Seebeck effect, thus enabling the use of this material for spin caloritronics. A gate poten…
Adatoms in graphene as a source of current polarization: Role of the local magnetic moment
Matheus P. Lima, Antônio J. R. da Silva, A. Fazzio
We theoretically investigate spin-resolved currents flowing in large-area graphene, with and without defects, doped with single atoms of noble metals (Cu, Ag and Au) and 3d-transit…
Bilayer graphene dual-gate nanodevice: An ab initio simulation
J. E. Padilha, Matheus P. Lima, A. J. R. da Silva +1
We study the electronic transport properties of a dual-gated bilayer graphene nanodevice via first principles calculations. We investigate the electric current as a function of gat…
Spin-filtering and Disorder Induced Giant Magnetoresistance in Carbon Nanotubes: Ab Initio Calculations
J. M. de Almeida, A. R. Rocha, A. J. R. da Silva +1
Nitrogen-doped carbon nanotubes can provide reactive sites on the porphyrin-like defects. It's well known that many porphyrins have transition metal atoms, and we have explored tra…