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Avaliação do "magnetron sputtering" como técnica para obtenção de MgB2
(Universidade Federal de Santa Maria, 2014-08-26)
In this work a survey of the potentialities and limitations of magnetron sputtering as a
tool for the production of MgB2 superconductors thin films has been made. Instead of the usual
approaches, like co-deposition onto ...
Crescimento de filmes finos de ni81fe19 para aplicações envolvendo magnetorresistência anisotrópica
(Universidade Federal de Santa Maria, 2011-05-13)
Anisotropic magnetoresistance (AMR) consists in the change of the resistivity of a ferromagnetic metal as a function of the angle between the current and the magnetization, what makes AMR-based sensors promising to measure ...
Magnetoimpedância em multicamadas de Ni81Fe19/Cu com a corrente de sonda perpendicular ao plano do filme
(Universidade Federal de Santa Maria, 2006-06-02)
In this work the behavior of the magnetoimpedance (MI) in ferromagnetic
multilayered (Ni81Fe19/Cu) produced by magnetron sputtering was studied. In all
measurements, the probe current was applied perpendicularly to the ...
Produção de filmes supercondutores de nióbio e de sistemas híbridos crescidos por Magnetron Sputtering DC
(Universidade Federal de Santa Maria, 2012-08-16)
Currently, several research groups have been devoted to the production of superconducting
films. This interest lies on the facility of their manipulation, on the understanding of basic
concepts of the superconductivity ...
Deposição de nano-grãos de Co em uma matriz de CoO/Al2O3 por Magnetron Sputtering
(Universidade Federal de Santa Maria, 2007-10-20)
Granular magnetic systems can be composed by magnetic particles or clusters with size of some nanometers. These magnetic nanoparticles present different magnetic order phases, as superparamagnetic, and they can be embedded ...
Deposição de nano-camadas de VO2 por Magnetron Sputtering
(Universidade Federal de Santa Maria, 2007-04-13)
The vanadium dioxide (VO2) shows a metal-insulator transition (MIT) near the room temperature with huge changes in its electrical and optical behavior. Both the
electrical and optic properties, and even the transition ...