Buscar
Mostrando ítems 11-20 de 24
Propriedades estruturais e eletrônicas de bicamadas de grafeno epitaxial e nanoestruturas do isolante topológico Bi2Se3
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE FÍSICAPrograma de Pós-Graduação em FísicaUFMG, 2020-12-18)
Low dimensional materials, such as graphene, are highly susceptible to the substrate (interface) where they are supported. In this work, we investigate the properties of epitaxial graphene bilayers on oxidized silicon ...
Electron confinement induced by diluted hydrogen-like ad-atoms in graphene ribbons
(2015)
We report the electronic properties of two-dimensional systems made of graphene nanoribbons, which are patterned with ad-atoms in two separated regions. Due to the extra electronic confinement induced by the presence of ...
Melanin films on Au(1 1 1): Adsorption and molecular conductance
(Elsevier Science, 2012-10)
We have studied the adsorption and electronic properties of thin melanin films on Au(1 1 1) by scanning tunneling microscopy (STM), scanning tunneling spectroscopy (STS), and density functional (DF) calculations. We have ...
Fabricación y caracterización de nanoparticulas de Fe
(2017-03-31)
En esta tesis, se estudiaron y caracterizaron superficies nanoestructuradas de interés tecnológico generadas mediante irradiación iónica, específicamente nanopartículas de Fe (NP's-Fe) formadas en la matriz del mineral ...
New direction in nanotube science
(Elsevier, 2019)
Structural and electronic transformations upon heating of the topological insulator Bi2Se3
(Universidade Federal de Minas GeraisUFMG, 2017-03-15)
Bismuth Selenide (Bi2Se3) is a topological insulator compound with a lamellar structure formed by the repetition of stacks of five atomic monolayers, each of them consisting of layers with either Se or Bi atoms. Each ...
Grafeno epitaxial sobre sic(0001): crescimento, intercalação e efeitos de interface
(Universidade Federal de Minas GeraisUFMG, 2019-08-09)
In this work we investigate the influence of the graphene-substrate interface on the electronic properties of quasi-free-standing (QFS) bilayer graphene grown on silicon carbide (SiC). The QFS bilayers were developed by ...