56 citations · 74 across the 5 of their papers we have counts for
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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…
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…
Selection Rules for One- and Two-Photon Absorption by Excitons in Carbon Nanotubes
Eduardo B. Barros, Rodrigo. B. Capaz, Ado Jorio +7
Recent optical absorption/emission experiments showed that the lower energy optical transitions in carbon nanotubes are excitonic in nature, as predicted by theory. These experimen…
Raman studies of polycrystalline CaCuTiO under high-pressure
D. Valim, A. G. Souza Filho, P. T. C. Freire +5
We report a Raman scattering study of polycrystalline CaCuTiO (CCTO) under pressure up to 5.32 GPa. The pressure dependence of several Raman modes was investigated.…
A Raman Investigation of PbZr0.94Ti0.06O3 Ceramics Under High-Pressures
A. G. Souza Filho, P. T. C. Freire, J. M. Sasaki +5
We have investigated the behavior of the PbZr(0.94}Ti(0.06)O3 Raman spectra as a function of Hydrostatic pressures. The new structural phases were identified based on previous work…