Efecto de la adición de Co sobre las propiedades de la microestructura y la morfología de TIO2: óxido multicomponente de metales de transición
Effects of Co Addition on the Microstructure and Morphological Properties of TIO2: Multicomponent Oxide of Transition Metals


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Este trabajo presenta el proceso de fabricación y caracterización de películas delgadas de dióxido de titanio dopado con cobalto depositado sobre vidrio tipo Soda-lime, y usado para aplicaciones Espintrónicas. Las muestras fueron fabricadas por la técnica de DC “Sputtering" en configuración “magnetron”. Después del proceso de depósito, las muestras fueron sometidas a recocidos en a presione atmosférica. Los procesos de recocido afectaron las propiedades estructurales, evidenciad en la formación de Co3O4 con una estructura espinela. Las medidas de XPS corroboraron la presencia de especies de cobalt con un arreglo de espinela. La caracterización morfológica mostro una naturaleza granular de las muestras, que variaron con el tiempo de depósito y los procesos de recocido. Medidas de PPMS revelaron un comportamiento ferromagnético a temperatura ambiente de las películas delgadas.
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