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Ondas gravitacionais e o espectro de anisotropia tensorial na presença de neutrinos cosmológicos
(Universidade Federal de São Carlos, 2012-07-10)
In this work we have studied the evolution of primordial gravitational waves coupled to anisotropic stress tensor of cosmological neutrinos. As in a radiation dominated universe, in a universe dominated by radiation and ...
Fabricação e caracterização de heteroestruturas magnetoelétricas do sistema Pb(Zr0,2Ti0,8)O3/CoFe2O4 obtidas por RF-Sputtering
(Universidade Federal de São Carlos, 2019-03-14)
This dissertation aims to develop new nanostructured magnetoelectric composites systems based on magnetoelectric effect. The magnetoelectric coupling in nanostructured systems has attracted interests mainly due to possibility ...
Fabricação e caracterização elétrica de dispositivos orgânicos emissores de luz derivados de poli-p(fenilene vinilene) (PPV)
(Universidade Federal de São Carlos, 2010-03-16)
Molecularly doped polymers have been widely studied in recent years due to their electronic and optical properties, and application in the manufacture of opto-electronic devices, light emitting diodes (LED) and others. ...
Spray pirólise de filmes de óxido de zinco dopado com alumínio e estanho
(Universidade Federal de São Carlos, 2019-07-02)
We present a study on the structural, optical and electrical properties of ZnO doped with Al (ZnO: Al) and with Sn (ZnO: Sn) grown on glass substrates using the Spray Pyrolysis technique. The sample were grown in the ...
Do geocentrismo à gravitação universal: proposta e implementação de uma sequência didática para o ensino médio
(Universidade Federal de São Carlos, 2016-08-18)
This work is formed by the development and implementation of an Educational Product, which by means of a didactic sequence (DS), aimed to address geocentrism, heliocentrism and universal gravitation topics in a less classical ...
Análise de fenômenos críticos no modelo Rock-Paper-Scissors
(Universidade Federal de São Carlos, 2019-07-03)
This present work was developed with the purpose of analyzing critical phenomena in
the Rock-Paper-Scissors model, consisting of three species and the empty site, initially
distributed randomly in a square lattice, in ...
Propriedades magneto-óticas e de magneto-transporte de um diodo de tunelamento ressonante contendo Si δ - doping no poço quântico
(Universidade Federal de São Carlos, 2011-03-11)
In this work, we have studied the transport and optical properties of GaAs = AlGaAs resonant tunneling diodes with Si delta-doping at the center of the quantum well. We have studied magneto-transport and polarized resolved ...
Do positivo ao negativo : utilizando ferramentas computacionais e experimentação para a simulação de (meta)materiais refrativos
(Universidade Federal de São Carlos, 2016-08-22)
This work aims at the development of physical phenomena simulations associated to
mathematical modeling and experimentation. The choice of geometrical optics is due,
among other reasons, to the need for raising the ...
Relações estrutura: propriedades como subsídio à elucidação do diagrama de fases do sistema ferroelétrico (Pb,Ca)TiO3
(Universidade Federal de São Carlos, 2013-02-28)
Solid solutions with perovskite structure, especially lead-based oxides, have been developed and investigated as single crystal and/or polycrystal ceramics since the midtwentieth century, but aspects of phase diagram of ...
Curvas de rotação galácticas em teorias métricas da gravitação
(Universidade Federal de São Carlos, 2019-04-01)
From a Parametrized Post-Newtonian (PNP) perspective we attempt to partially answer
the question, by studying some models, of whether or not the new degrees of freedom,
represented by the PNP potentials, can lead to ...