Magnetism Spectroscopy Diffraction
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. FERROMAGNETISMO DILUÍDO DE SEMICONDUTORES MISTOS CeO2-ZnO:M (M = Fe, Co, Ni). / FERROMAGNETISM DILUTED SEMICONDUCTOR CeO2 MIXED-ZnO: M (M = Fe, Co, Ni).
Neste trabalho estudamos a caracterização estrutural e magnética das amostras de Ce1-2xZnxMxO2-δ (Fe, Co e Ni) e Ce0,5(1-x)Zn0,5(1-x)FexO2-δ obtidas via processo sol-gel proteico que tem como precursor orgânico a água de coco. As soluções foram preparadas pela dissolução dos nitratos de cério e zinco para as amostras dopadas com Zn e nitr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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2. Preparation, characterization and evaluation of iron oxides and cobalt supported on activated carbon and polymeric catalysts for the dehydrogenation of ethylbenzene / Preparação, caracterização e avaliação de óxidos de ferro e cobalto suportados em carvão ativado polimérico como catalisador na reação de desidrogenação do etilbenzeno
In this work were synthesized catalysts supported on activated carbons, which were obtained by carbonization of a polymer matrix. The precursor of activated carbon was the sulfonated styrene-divinylbenzene copolymer, which was synthesized by suspension polymerization in the presence of inert diluents to produce a macroporous network structure. The chemical m
Publicado em: 2010
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3. Síntese e caracterização de nanopartículas de ferritas / Sysnthesis and characterization of fenites nanoparticles
Magnetic nanoparticles have been extensively investigated, motivated by their potential technological and biomedical applications as well as in search of a better understanding of the physical properties modifications induced by nanoscale size. Synthesizing nanoparticles with a narrow size dispersion and good morphological, structural and stoichiometric homo
Publicado em: 2008
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4. CRESCIMENTO, ESTRUTURA E POLARIZAÇÃO DE TROCA EM BICAMADAS FERROMAGNETO / ANTIFERROMAGNETO PREPARADAS POR DEPOSIÇÃO EM CONDIÇÕES DE EPITAXIA POR FEIXE MOLECULAR: Fe / EuTe(111), Fe / Ni50Mn50(001) e Ni1-xFex / Fe50Mn50
Magnetic interaction at interfaces between different layered magnetic materials is an important current topic in physics and materials science, particularly when combining ferromagnetic metals and semiconductors. The exchange bias effect associated with the exchange coupling between antiferromagnetic (AFM) and ferromagnetic (FM) systems, has been extensively
Publicado em: 2007