Detalhes bibliográficos
| Ano de defesa: |
2022 |
| Autor(a) principal: |
FREITAS, Darlene Pereira
 |
| Orientador(a): |
MORAES, Fernando Jorge Sampaio |
| Banca de defesa: |
BARBOSA, Anderson Luiz da Rocha e,
CANDIDO, Denis Ricardo |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal Rural de Pernambuco
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Física Aplicada
|
| Departamento: |
Departamento de Física
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/9373
|
Resumo: |
Since the isolation of graphene, this two-dimensional nanomaterial has been the focus of several studies and researches for its very unique physical properties, different from the properties of the material that originated it, such as the fact that it is highly resistant, even though it is only one atom thick, and it is also a flexible nanomaterial; this interest also focuses on the nanostructures that are derived from it. In this work we concentrate our studies on the structure of catenoidal geometry (similar to a wormhole), with a ”throat” formed by hexagonal and octagonal carbon chains, and outer edges being of the type zig zag. In order to investigate the electronic properties of this structure, we used computational calculations based on the non-equilibrium Green’s function formalism (non-interacting transport) in conjunction with the tight-binding method, obtaining the density of states (local and total), band structure and electronic transmission. We seek to investigate their behavior in the presence of a current flowing through the structure, through different configurations of input and output contacts allocated at the edges, simulated by a two-dimensional square lattice. |
