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Tomografia PCA aplicada a cubos de dados no infravermelho próximo para a galáxia Seyfert Mrk 1066
(Universidade Federal de Santa Maria, 2014-06-30)
In this work, we apply the PCA Tomography technique (Principal Component Analysis) to data
cubes for the central region of the Seyfert 2 galaxy Mrk 1066. The observations were done with
the NIFS (Near-infrared Integral ...
Pseudogap e calor específico de um modelo de hubbard repulsivo
(Universidade Federal de Santa Maria, 2014-08-15)
The specific heat and the condensation energy of a two-dimensional Hubbard model,
suitable to discuss high Tc superconductors (HTSTC), is studied taking into account
hopping to first (t) and second (t2) nearest neighbors. ...
Efeito do tratamento térmico na relaxação magnética de microfios amorfos de CoFeSiB recobertos por vidro
(Universidade Federal de Santa Maria, 2012-02-27)
Magnetoimpedance has been proved to be an excellent tool to study the magnetization
dynamics and the ferromagnetic resonance (FMR) linewidth provides a convenient way
for measuring damping parameters in magnetic materials. ...
Estudo de primeiros princípios de nanofios de inas submetidos a tensões extremas
(Universidade Federal de Santa Maria, 2015-03-30)
The ability to manipulate materials at the atomic scale turn it possible to look
for materials at the nanoscale that can supersede the performance of their bulk counterparts
in specific tasks. Nanowires, due to their ...
Estudo teórico de antissítios e impureza substitucional de oxigênio em nanofio de SiC
(Universidade Federal de Santa Maria, 2010-09-23)
In this work first we perform a study about the stability, and the electronic properties of SiC growth in the [111] direction when defects are present. We use the supercell method and the dangling bonds on the surface of ...
Crescimento de filmes finos de NbN por magnetron sputtering reativo
(Universidade Federal de Santa Maria, 2013-02-18)
In the last decades, several applications of niobium nitride thin films has been proposed
or effectively implemented. In the cubic δ − NbN phase, the bulk material presents a Tc for
the superconducting transition near ...
Oxidação de nanofios de InP: um estudo de primeiros princípios
(Universidade Federal de Santa Maria, 2012-12-17)
A study of InP nanowires with an oxide layer, as well as the initial steps of the oxidation process is pursued through first principles calculations and molecular dynamics simulations within the Density Functional Theory. ...
Medida da magnetização de filmes finos: desenvolvimento de um magnetômetro kerr
(Universidade Federal de Santa Maria, 2014-02-21)
The Kerr effect is the rotation of the plane of polarization of a light beam during
reflection on a magnetized sample. In this work we built an optical Kerr effect
magnetometer Longitudinal (L-MOKE) and measured the ...
Cinemática bidimensional da região central das galáxias Seyfert NGC1068 e NGC2110
(Universidade Federal de Santa Maria, 2013-07-15)
In this work, we present a two-dimensional mapping of the central region of the active galaxies
NGC 1068 and NGC 2110, using near infrared integral field spectroscopy with the instrument NIFS
(Near-infrared Integral Field ...
Cinemática e distribuição do gás ionizado na região central das galáxias Seyfert NGC4501 e NGC3982
(Universidade Federal de Santa Maria, 2015-02-25)
We present two-dimensional (2D) maps for emission-line fluxes and ratios and kinematics for
the central regions of the Seyfert galaxies NGC 4501 and NGC 3982, from optical spectra obtained
with the GMOS (Gemini Multi ...