activity
19992019
most citedSelection Rules for One- and Two-Photon Absorption by Excitons in Carbon Nanotubes

56 citations · 76 across the 8 of their papers we have counts for

collaborators

9 papers

cond-mat.mtrl-sci2019

Ionic Conductivity Of Solid Oxides Hxag1-xtawo6.NH2O: Microstructural Aspects

Daniel Valim, Antônio G Souza Filho, Josue M Filho +4

A study of impedance spectroscopy was done for the electrical characterization of pyrochlore materials. The experiment consisted of measurements of the dependence of the impedance…

cond-mat.mtrl-sci2019★ 2 cited

Elastic Properties of Graphyne-based Nanotubes

J. M. De Sousa, R. A. Bizao, V. P. Sousa Filho +6

Graphyne nanotubes (GNTs) are nanostructures obtained from rolled up graphyne sheets, in the same way carbon nanotubes (CNTs) are obtained from graphene ones. Graphynes are 2D carb…

cond-mat.mes-hall2012

Structural and phonon properties of bundled single- and double-wall carbon nanotubes under pressure

Acrisio. L. Aguiar, Rodrigo B. Capaz, A. G. Souza Filho +1

In this work, we report a theoretical coupled study of the structural and phonons properties of bundled single- and double-walled carbon nanotubes (DWNTs), under hydrostatic compre…

cond-mat.mtrl-sci2008

A new class of organic molecular magnets

William A. Shelton, Edoardo Apra, Bobby G. Sumpter +4

Using detailed first principles calculations, we have found a new class of stable organic molecular magnets based on zwitterionic molecules possessing donor, bridge, and accept…

cond-mat.mes-hall2008

Switching On Magnetism in Ni-doped Graphene

E. J. G. Santos, A. Ayuela, S. B. Fagan +4

Magnetic properties of graphenic carbon nanostructures, relevant for future spintronic applications, depend crucially on doping and on the presence of defects. In this paper we stu…

cond-mat.mtrl-sci2007★ 16 cited

Chemical doping-induced gap opening and spin polarization in graphene

I. Zanella S. Guerini, S. B. Fagan, J. Mendes Filho +1

By using first principles calculations we report a chemical doping induced gap in graphene. The structural and electronic properties of CrO interacting with graphene layer are…