Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Filho, A. G. Souza"'
Autor:
Valim, Daniel, Filho, Antônio G Souza, Filho, Josue M, Alves, Oswaldo L, Silva, Eder N, de Santis, Marco Aurélio C, Ramos, Romildo J
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 of such systems with the temperature during heating (25 to 110 {\deg}C
Externí odkaz:
http://arxiv.org/abs/1908.00594
Autor:
De Sousa, J. M., Bizao, R. A., Filho, V. P. Sousa, Aguiar, A. L., Coluci, V. R., Pugno, N. M., Girao, E. C., Filho, A. G. Souza, Galvao, D. S.
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 carbon-allotropes composed of atoms in sp and sp2 hybridized states. Simil
Externí odkaz:
http://arxiv.org/abs/1905.02104
Autor:
de Sousa, J. M., Aguiar, A. L., Girao, E. C., Fonseca, Alexandre F., Filho, A. G. Souza, Galvao, Douglas S.
Recently, a new two-dimensional carbon allotrope called pentagraphene (PG) was proposed. PG exhibits mechanical and electronic interesting properties, including typical band gap values of semiconducting materials. PG has a Cairo-tiling-like 2D lattic
Externí odkaz:
http://arxiv.org/abs/1703.03789
Publikováno v:
MRS Proc. 1752 (2015) 53-58
Recent studies of single-walled carbon nanotubes (CNTs) in aqueous media have showed that water can significantly affect the tube mechanical properties. CNTs under hydrostatic compression can preserve their elastic properties up to large pressure val
Externí odkaz:
http://arxiv.org/abs/1412.7966
Autor:
da Silva, Giulia S., de Oliveira, Luiza P., Costa, Gabriel F., Giordano, Gabriela F., Nicoliche, Caroline Y.N., da Silva, Alexandre A., Khan, Latif U., da Silva, Gabriela H., Gobbi, Angelo L., Silveira, José V., Filho, Antonio G. Souza, Schleder, Gabriel R., Fazzio, Adalberto, Martinez, Diego S.T., Lima, Renato S. *
Publikováno v:
In Sensors and Actuators: B. Chemical 15 February 2020 305
Akademický článek
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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 compression. Our results confirm drastic changes in volume of SWNTs in high-
Externí odkaz:
http://arxiv.org/abs/1206.4516
Autor:
Shelton, William A., Apra, Edoardo, Sumpter, Bobby G., Saraiva-Souza, Aldilene, Filho, Antonio G. Souza, Del Nero, Jordan, Meunier, Vincent
Using detailed first principles calculations, we have found a new class of stable organic molecular magnets based on zwitterionic molecules possessing donor, $\pi$ bridge, and acceptor groups. These molecules are organic molecules containing only C,
Externí odkaz:
http://arxiv.org/abs/0812.0798
Autor:
Santos, E. J. G., Ayuela, A., Fagan, S. B., Filho, J. Mendes, Azevedo, D. L., Filho, A. G. Souza, Sánchez-Portal, D.
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 study the magnetism of the recently detected substitutional Ni (Ni(sub))
Externí odkaz:
http://arxiv.org/abs/0809.2901
Akademický článek
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