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Propriedades eletrônicas e espectroscópicas de aglomerados de moléculas interestelares
(Universidade Federal de São Carlos, 2013-08-29)
The interstellar médium (ISM) is a gigantic reservoir of atoms and molecules of different shapes and sizes. In general, they are concentrated in enormously big regions in space known as interstellar cloud. There exist huge ...
Defeitos topológicos e cadeias cíclicas de deformação aplicados em diferentes cenários
(Universidade Federal de São Carlos, 2015-04-30)
In order to obtain structures known as defects, it was used a systematic procedure
which holds cyclic deformation chains. This cyclical procedure enables that the initial
defect (used to trigger the chain) is recovered ...
Estudo experimental de efeitos de spin em heteroestruturas semicondutoras
(Universidade Federal de São Carlos, 2015-04-28)
In this thesis, we have investigated optical and spin properties of semiconductor
nanostructures. Photoluminescence and magneto-photoluminescence measurements
were performed in high magnetic field (B ≤ 15T), in GaBiAs ...
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 ...
Propriedades de transporte em barreiras magnéticas em grafeno
(Universidade Federal de São Carlos, 2015-04-30)
In this work we studied the properties of Graphene through single and double magnetic barrier. It was used the transfer matrix method for calculating the transmissivity in single and double barriers of monolayer Graphene ...
Engenharia de defeitos em semicondutores de gap largo
(Universidade Federal de São Carlos, 2015-12-14)
Defects play a fundamental issue on physical properties of wide bandgap semiconductors
(WBS) due to the possibility of application in high temperature. This work shows the features of the defects in di erent kind of WBS ...
Propriedades físicas de modelos integráveis
(Universidade Federal de São Carlos, 2017-08-16)
In this thesis we tackled two di erent problems of quantum integrability. We derived nite sets of non-linear integral equations to describe physical properties of quantum chains invariant under the super-algebras su(2|1) ...
Estudo das propriedades estruturais e de transporte eletrônico em nanoestruturas de óxidos semicondutores e metálicos
(Universidade Federal de São Carlos, 2010-05-07)
The structural and transport features of oxide nanostructures synthesized by a vapour phase aproach: the VLS and VS methods were investigated in this work. ITO and In2O3 nanowires were characterized by using XRD, HRTEM and ...
Otimização das propriedades superficiais dos aços inoxidáveis AISI 304, AISI 316L e ASTM F138 recobertos com filme de alumínio e nitretados
(Universidade Federal de São Carlos, 2010-03-12)
Many industrial applications of stainless steel require the modification of surface properties, such as corrosion resistance, and mechanical properties such as hardness. For this purpose several surface modify techniques ...
Processamento e caracterização de cerâmicas transparentes do sistema ferroelétrico PMN-PT dopado com lantânio
(Universidade Federal de São Carlos, 2011-12-17)
In this work, one of the goals was the stabilization and/or optimization of the perovskita phase in the (Pb,La)(Mg1/3Nb2/3)O3+PbTiO3 (PLMN-PT) e Pb(Mg1/3Nb2/3)O3+PbTiO3+La2O3 (PMN-PT:La) powders in order to obtain ceramics ...