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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 ...
Modelo de Anderson com repulsão coulombiana nos níveis que se acoplam com o ponto quântico
(Universidade Federal de São Carlos, 2019-12-20)
In this work, a study of the Anderson model is done for the case of a quantum dot between
two electron gases, single-electron transistor (SET), where a Coulombian repulsion term
was added at the orbitals that are directly ...
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 ...
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 ...
Controle coerente da excitação de modos topológicos em condensados de Bose-Einstein
(Universidade Federal de São Carlos, 2019-07-04)
In this project were carried out a study on dynamics control of one dimensional Bose- Einstein condensates of dilute gases by development and application of techniques on systems that are described by Gross-Pitaevskii ...
Superposição de estados comprimidos de dois modos e aplicações em informação quântica
(Universidade Federal de São Carlos, 2019-03-07)
In this work, we present a new class of quantum states for applications in quantum
metrology and quantum information, the states here named as “Even EPR” and “Odd
EPR”. We present a review of the basic concepts 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 ...
Effective-action approach to dirty bosons in optical lattices
(Universidade Federal de São Carlos, 2019-02-21)
A system of cold bosonic atoms loaded in an optical lattice potential can undergo a macroscopic phase transition due to quantum fluctuations. As the depth of the lattice potential is increased, the ground state of the ...
Armadilha Óptica de Dipolo para 88Sr
(Universidade Federal de São Carlos, 2019-02-28)
In this work, we present the study of light and matter interaction through the building and operation of a cold atoms experiment. The motivation is to study light scattering in the dense regime, where this phenomenon becomes ...
Efeitos de parâmetros de crescimento nas propriedades ópticas de filmes finos de ZnO:Er
(Universidade Federal de São Carlos, 2019-12-19)
We report a systematic study on the structural, morphological and optical properties of Er-doped ZnO thin films grown by Spray Pyrolysis. The films were deposited on glass substrates between 230ºC - 300ºC, using as precursors ...