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Ultracold bosons in random lattice potentials
(Universidade Federal de São Carlos, 2023-04-06)
The Bose-Hubbard model describes short-range interacting spinless bosons on a random lattice. This model is realized in ultracold atomic systems where quantum phase transitions can be observed. When loaded into a deep ...
Propriedades óticas e magneto-óticas de monocamadas de MoWSe2
(Universidade Federal de São Carlos, 2023-01-23)
Two-dimensional (2D) semiconductors, such as transition-metal dichalcogenide (TMD) monolayers, have attracted intense interest in the last years because of their direct band gaps, valley properties and excitonic effects. ...
Theoretical and experimental investigation on the visible-light controlled functional properties in charged domain wall ferroelectrics
(Universidade Federal de São Carlos, 2023-04-13)
Optical control of ferroelectric properties have been attracted a growing interest as an
alternative to the conventional control by applied electric fields. However, the major
drawback for achieving an effective reversible ...
Relaxação de spin em nanoestruturas semicondutoras 0 e 2D
(Universidade Federal de São Carlos, 2023-03-01)
This thesis contains a compilation of the work developed and is divided into
three main parts. The first part describes the homogeneous and inhomogeneous
decoherence mechanisms of excitons in GaAs/AlGaAs quantum wells. ...
Electromigration of multiterminal transport bridges
(Universidade Federal de São Carlos, 2023-03-09)
With the continued miniaturization of integrated circuits (ICs), the case of metallic tracks subjected to stress caused by transport currents has become a matter of increasing concern, as it puts at risk the reliability ...
Estudos in sı́lico de proteı́nas alostéricas e sua interação com ligantes
(Universidade Federal de São Carlos, 2023-02-24)
Allosteric proteins are extremely important for the regulation of several functions in
the organism, such as the transport of molecules through the blood and cell membranes,
as well as the phosphorylation of other proteins. ...
Modelos de branas em (5+1) dimensões e o espectro dos leptóns carregados
(Universidade Federal de São Carlos, 2023-10-27)
This manuscript is concerned with a mechanism for explaining the mass spectrum of
the charged leptons within (5 + 1)-dimensional braneworlds. As a preliminary objective,
new two co-dimensional thick braneworlds ought to ...
Funcionalidades elétricas mediadas por defeitos em óxidos semicondutores do tipo-p
(Universidade Federal de São Carlos, 2023-10-27)
Structural defects, such as point defects, play an important role in the electrical transport in semiconductor oxide films. This work presents a systematic study of photoconductivity at room temperature in thin films of ...
Otimização dos campos de proteção nas técnicas de desacoplamento dinâmico contínuo
(Universidade Federal de São Carlos, 2023-09-15)
In this research project, we investigate the method known as \textit{continuous dynamical decoupling}, which is based on the use of continuously applied external fields to maximize the fidelity of quantum logical operations ...
Influência de Interface sobre as propriedades Ferroicas e Multiferroicas de Nanoestruturas de Pb(Zr0,2Ti0,8)O3/CoFe2O4 Crescidas via RF-Sputtering
(Universidade Federal de São Carlos, 2023-08-11)
This work shows a systematic study of the structural, microstructural, ferroic and multiferroic coupling properties of bilayer thin films of the PZT/CFO system, with the constituent phases varying in thickness from 20 to ...