R
Roberto H. Miwa
Researcher at Federal University of Uberlandia
Publications - 158
Citations - 2986
Roberto H. Miwa is an academic researcher from Federal University of Uberlandia. The author has contributed to research in topics: Ab initio & Graphene. The author has an hindex of 28, co-authored 145 publications receiving 2690 citations. Previous affiliations of Roberto H. Miwa include University of Exeter & University of São Paulo.
Papers
More filters
Journal ArticleDOI
Electronic and transport properties of boron-doped graphene nanoribbons.
TL;DR: It is found that the electronic scattering process is spin-anisotropic; namely, the spin-down (up) transmittance channels are weakly (strongly) reduced by the presence of boron atoms, which can be controlled by the width of the nanoribbon.
Journal ArticleDOI
Electronic, structural, and transport properties of Ni-doped graphene nanoribbons
Vagner A. Rigo,Vagner A. Rigo,T. B. Martins,Antônio J. R. da Silva,Adalberto Fazzio,Adalberto Fazzio,Roberto H. Miwa +6 more
TL;DR: In this article, the authors investigated the electronic and transport properties of zigzag Ni-adsorbed graphene nanoribbons (Ni/GNRs) using ab initio calculations.
Journal ArticleDOI
σ- and π-Defects at Graphene Nanoribbon Edges: Building Spin Filters
TL;DR: Using an approach based on density functional theory and nonequilibrium Green's function formalism to calculate the transmittance, defects in monohydrogenated zigzag graphene nanoribbons are classified depending on their distinct transport properties.
Journal ArticleDOI
Directional dependence of the electronic and transport properties of 2D borophene and borophane
TL;DR: It is found that borophene presents an electronic current two orders of magnitude larger than borophane, and the direction dependence of the electronic current in two perpendicular directions, namely, Ix and Iy is verified.
Journal ArticleDOI
Hydrogen adsorption on boron doped graphene: an ab initio study.
TL;DR: In this paper, the structural properties of boron doped B1-B2 graphene sheets have been examined by ab initio total energy calculations and it was shown that the structural deformations are localized around the borons substitutional sites, and there is an increase of the electronic density of states near the Fermi level.