06/C235
Magnetismo en films y multicapas magnéticas
Magnetism in magnetic films and multilayers
Director: BUTERA, Alejandro
Correo electrónico: butera@cab.cnea.gov.ar
Co-Director: ALEJANDRO, Gabriela
Integrantes: MILANO, Julián; GÓMEZ, Javier; VARGAS, José; PEREZ, Julio César; BENAVIDEZ, Rubén
Resumen Técnico: El resumen técnico tiene por objetivo la aprehensión sintética de su proyecto, será almacenado en el sistema computarizado de la Secretaría de Ciencia, Técnica y Posgrado debe permitir el fácil acceso a la información. Haga una síntesis de los objetivos, la línea de investigación, la hipótesis de trabajo, la metodología, producto a obtener, sistema de transferencia y beneficios esperados. De ninguna manera debe exceder el espacio disponible en el formulario.
Summary: This proposal is focused on the research of different aspects of artificial magnetic structures, composed by ferromagnetic, antiferromagnetic, semiconducting or granular materials. We will study the magnetic properties at the nanometer scale in thin films and multilayers using different experimental techniques (mainly dc magnetization, ferromagnetic resonance and magnetic microscopy). We will analyze the influence of the size and dimensionality of the nanostructures on their magnetic behavior, focusing our attention on the effects of surfaces and interfaces on the magnetic order, the magnetic anisotropy, and the influence of different materials in the multilayers. Some of the studied systems will be Fe/Fe-SiO2/Fe and Fe/Fe-SiO2/Permalloy multilayers, MnAs and Fe/MnAs films, Fe3O4 or FePt nanoparticles embedded in a ferromagnet, FePt films and particles deposited on FeMn, etc. The fabrication of the nanostructures will be made using high vacuum techniques, such as magnetron sputtering or Molecular Beam Epitaxy. This proposal is part of a global project that integrates researches of several fields working and collaborating in different institutions in Argentina in the area of nanoscience. A major aim of this proposal is the formation of graduate and post graduate students with a strong background in the field of magnetic nanostructures.