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Biblos-e Archivo
Doctoral thesis . 2009
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Nanoestructuración de materiales magnéticos mediante aluminio anodizado

Authors: Oliveira da Rosa, Wagner;

Nanoestructuración de materiales magnéticos mediante aluminio anodizado

Abstract

El objetivo principal de este trabajo lo constituye: el diseño y fabricación de novedosas nanoestructuras magnéticas, esencialmente de Co, de manera controlada y altamente reproducibles. Para tal fin se han utilizado diferentes técnicas y procesos de producción de materiales, entre los cuales, cabe destacar las técnicas electroquímicas, particularmente, la anodización. Mediante técnicas de este tipo, hemos logrado la fabricación de nanoestructuras ordenadas funcionales 1D y 2D tales como: nanohilos, láminas de antidots, y otros arreglos en matrices poliméricas. En esta memoria se presentarán, tanto los métodos de fabricación como, la caracterización estructural y magnética de las nanoestructuras conseguidas. Especial interés tiene la respuesta magnética de estos nuevos materiales al variar diferentes parámetros, tales como: temperatura, ángulo entre muestra y campo magnético aplicado, ángulo de deposición por sputtering del material magnético, espesor y tipo de geometría. Por otra parte, en la interpretación y discusión de los resultados magnéticos, se tendrán en cuenta las anisotropías presentes en cada sistema. En el capítulo 1 mostraremos una breve introducción del estado del arte en nanotecnología y en magnetismo bien como una sucinta descripción de algunas interacciones magnéticas. En el capítulo 2 se describirá minuciosamente las técnicas utilizadas tanto en la producción como caracterización de las muestras estudiadas en esta memoria. Finalmente, en los capítulos 3 y 4 analizaremos los resultados obtenidos para redes de nanohilos de diferentes composiciones (capítulo 3), películas porosas magnéticas (capítulo 3) y matrices poliméricas (capítulo 4).

Tesis Doctoral elaborada en el Departamento de Materiales para las Tecnologías de la Información del Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC) y presentada en la Universidad Autónoma de Madrid el 9 de diciembre de 2009.

Este trabajo ha sido financiado por la agencia de fomento brasileño CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) dependiente del Ministério da Educação do Brasil.

Peer reviewed

Country
Spain
Related Organizations
Keywords

Alumina porosa, Nanoestructuras magnéticas, Procesos de imanación, Replica/antireplica, Auto-ensamblado, Nanotecnología - Tesis doctorales

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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