Magnetic and structural study of Cu-doped TiO₂ thin films

Transparent pure and Cu-doped (2.5, 5 and 10 at.%) anatase TiO₂ thin films were grown by pulsed laser deposition technique on LaAlO₃ substrates. The samples were structurally characterized by X-ray absorption spectroscopy and X-ray diffraction. The magnetic properties were measured using a SQUID. Al...

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Autores principales: Rodríguez Torres, Claudia Elena, Golmar, Federico, Cabrera, Alejandra Fabiana, Errico, Leonardo Antonio, Mudarra Navarro, Azucena Marisol, Rentería, Mario, Sánchez, Francisco Homero, Duhalde, S.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131056
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131056
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
spellingShingle Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
Rodríguez Torres, Claudia Elena
Golmar, Federico
Cabrera, Alejandra Fabiana
Errico, Leonardo Antonio
Mudarra Navarro, Azucena Marisol
Rentería, Mario
Sánchez, Francisco Homero
Duhalde, S.
Magnetic and structural study of Cu-doped TiO₂ thin films
topic_facet Ciencias Exactas
Física
Ferromagnetic
Semiconductors
Thin films
description Transparent pure and Cu-doped (2.5, 5 and 10 at.%) anatase TiO₂ thin films were grown by pulsed laser deposition technique on LaAlO₃ substrates. The samples were structurally characterized by X-ray absorption spectroscopy and X-ray diffraction. The magnetic properties were measured using a SQUID. All films have a FM-like behaviour. In the case of the Cu-doped samples, the magnetic cycles are almost independent of the Cu concentration. Cu atoms are forming CuO and/or substituting Ti in TiO₂. The thermal treatment in air promotes the CuO segregation. Since CuO is antiferromagnetic, the magnetic signals present in the films could be assigned to Cu substitutionally replacing cations in TiO₂.
format Articulo
Articulo
author Rodríguez Torres, Claudia Elena
Golmar, Federico
Cabrera, Alejandra Fabiana
Errico, Leonardo Antonio
Mudarra Navarro, Azucena Marisol
Rentería, Mario
Sánchez, Francisco Homero
Duhalde, S.
author_facet Rodríguez Torres, Claudia Elena
Golmar, Federico
Cabrera, Alejandra Fabiana
Errico, Leonardo Antonio
Mudarra Navarro, Azucena Marisol
Rentería, Mario
Sánchez, Francisco Homero
Duhalde, S.
author_sort Rodríguez Torres, Claudia Elena
title Magnetic and structural study of Cu-doped TiO₂ thin films
title_short Magnetic and structural study of Cu-doped TiO₂ thin films
title_full Magnetic and structural study of Cu-doped TiO₂ thin films
title_fullStr Magnetic and structural study of Cu-doped TiO₂ thin films
title_full_unstemmed Magnetic and structural study of Cu-doped TiO₂ thin films
title_sort magnetic and structural study of cu-doped tio₂ thin films
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/131056
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