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Estudos por espectroscopia Raman da heteroestrutura semicondutora InxGa1-xP/GaAs.
(Universidade Federal de São Carlos, 2005-03-24)
In this work, the technique Raman spectroscopy is used in order to study
InxGa1-xP films grown with different thickness on GaAs (001). Two sets of samples grown
by CBE (Chemical Beam Epitaxy) were analized: the first a ...
Influência de solutos intersticiais em nióbio e ligas nióbio-zircônio.
(Universidade Federal de São Carlos, 2005-07-20)
Metals of body-centered cubic structure that contain heavy interstitial solutes, such as oxygen
and nitrogen in solid solution, present anelastic relaxation peaks when submitted to cyclic tensions,
due to the process called ...
Engenharia de interações fônon-fóton-matéria mediadas por um campo clássico.
(Universidade Federal de São Carlos, 2004-04-30)
In this work we consider the problem of a three-level trapped ion inside a high-
Q cavity. We study the process of phonon-foton-matter interaction mediated by a
classical field. We are particularly interested in the ...
O estudo do limite de transporte interfilamentar de supercorrentes em amostras supercondutoras de BSCCO.
(Universidade Federal de São Carlos, 2006-03-15)
In this work, we have studied the behavior of the line H*(T) in filamentary samples of BSCCO, which were grown by the LFZ technique, Laser Floating Zone. Previously studied in other specimens prepared by specific routes ...
Estudo do modelo de Rabi no contexto de sistemas quânticos abertos
(Universidade Federal de São Carlos, 2009-01-27)
The Rabi Hamiltonian describes the interaction between a two-level atom and a single mode of the quantized electromagnetic field. In this work we study numerically and analytically the dynamics of the Rabi hamiltonian ...
Espectroscopia Mössbauer aplicada ao estudo da liga aço baixo carbono-Al nitretada.
(Universidade Federal de São Carlos, 2005-03-18)
We presented in this work a study of the influence of the thickness of Al thin film
deposited in substratum of low carbon steel. Alloys of steel low carbon and
aluminum are used broadly in automobile and aerospace industries. ...
Monitoramento de propriedades de condensados de Bose-Einstein interagindo não ressonantemente com campos óticos via detecção contínua de fotóns
(Universidade Federal de São Carlos, 2006-03-13)
In this work we consider an of - resonant interaction between optical fields and a Bose - Einstein condensation. We used a continuous photo detection model to study the efects of the counting of k photons of the optical ...
Efeitos de spin em diodos de tunelamento ressonante não-magnéticos tipo-n
(Universidade Federal de São Carlos, 2007-02-27)
In this work, we have investigated spin polarization effects in asymmetric ntype
resonant tunneling diodes (RTDs). When subjected to an external magnetic field parallel
to the tunnel current, the Zeeman effect leads to the ...
Estrutura de vidros fosfatos ternários no sistema Pb-Al metafosfato
(Universidade Federal de São Carlos, 2008-02-26)
In this work, the Pb-Al meta-phosphate glass system (1-x) Pb(PO3)2 xAl(PO3)3
was studied, with the aim of determining the structural effects induced in the glass network by
the substitution of Pb by Al. In the series of ...
Estudo da dinâmica de portadores em diodos de tunelamento ressonante tipo-p
(Universidade Federal de São Carlos, 2007-02-27)
Photoluminescence spectroscopy has been used to provide important insight
on the tunneling dynamics of carriers in double barrier diodes. In this work, we have
performed time-resolved photoluminescence measurements in ...