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Redes de osciladores dissipativos: o modelo duplicado de Caldeira-Leggett, transferência quase-perfeita de estados e recoerência
(Universidade Federal de São Carlos, 2010-02-25)
In this work we treat firstly what we call the double Caldeira-Leggett model, which consists on the approach to the dynamics of two dissipative harmonic oscillators via Feynman-Vernon theory. We derived and solved the ...
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 ...
Síntese e caraterização de MgxPb(1-x)TiO3
(Universidade Federal de São Carlos, 2015-08-14)
We report the investigation of structural, optical and electrical properties of the MgxPb(1-
x)TiO3 ceramic system produced by mechanosynthesis. The solid state reaction
manufacturing method has been proved to be an ...
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. ...
Análise de transformações de fases nas ligas Ti-35Nb-7Zr e Ti-xNb-3Fe por espectroscopia mecânica
(Universidade Federal de São Carlos, 2013-11-14)
In recent decades the study of β-Titanium alloys are attracting the interest to the biomaterials science community in general, since have improved properties as compared with current commercial biomedical alloys which ...
Mecânica quântica no espaço de fase não-comutativo e aplicações em termodinâmica
(Universidade Federal de São Carlos, 2016-08-26)
In this work we study theoretical aspects arising from the fact of considering a
quantum theory with general relations of noncommutativity. Through the quantum
mechanics in phase-space formalism in the Wigner-Weyl ...
Tunelamento ressonante de férmions massivos de Dirac em sistemas de simples e dupla barreiras em monocamada de grafeno
(Universidade Federal de São Carlos, 2015-04-29)
Nowadays, several efforts have been made by research groups around the physical
properties of the graphene in view of the possible technological applications of their
unique structural and electronic properties. The ...
Efeitos de localização de portadores em poços quânticos de GaBiAs/GaAs
(Universidade Federal de São Carlos, 2015-08-04)
In order to investigate optical and spin properties of GaBiAs / GaAs quantum
wells, we performed both photoluminescence and magneto-photoluminescence
spectroscopy measurements in three samples: 10 nm quantum wells with ...
Comportamento termodinâmico de cadeias de dímeros
(Universidade Federal de São Carlos, 2016-10-31)
In this Thesis we propose to describe the thermodynamical properties of dimer chains
in a one-dimensional lattice rstly considering q-states of chain orientation in the lattice
and secondly by a three states model where ...
Técnicas de difração de elétrons e de caracterizações elétricas e térmicas combinadas para análise de transformações de simetria em estruturas perovskitas distorcidas : caso das soluções sólidas (Pb1-xCax)TiO3
(Universidade Federal de São Carlos, 2017-03-03)
The main objective of this work was the unequivocally determination of the crystal symmetry
of distorted perovskite structure by direct and indirect methods, with the solid solution system
Pb1-xCaxTiO3 (PCT) as the case ...