Ferromagnetism in doped TiO2 thin films prepared by PLD

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Transition-Metal-doped TiO2 thin films, with nominal composition Ti₀.₉TM₀₁O₂-δ (TM = Mn, Fe, Co, Ni, Cu), were grown by pulsed laser deposition (PLD), in order to study the role of dopants in the origin and significance of room temperature ferromagnetism in these systems. The crystallographic struct...

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Autores principales: Duhalde, S., Rodríguez Torres, Claudia Elena, Vignolo, M. F., Golmar, F., Chillote, C., Cabrera, Alejandra Fabiana, Sánchez, Francisco Homero
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Física
Ferromagnetism
Films
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127815
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127815
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ferromagnetism
Films
spellingShingle Física
Ferromagnetism
Films
Duhalde, S.
Rodríguez Torres, Claudia Elena
Vignolo, M. F.
Golmar, F.
Chillote, C.
Cabrera, Alejandra Fabiana
Sánchez, Francisco Homero
Ferromagnetism in doped TiO2 thin films prepared by PLD
topic_facet Física
Ferromagnetism
Films
description Transition-Metal-doped TiO2 thin films, with nominal composition Ti₀.₉TM₀₁O₂-δ (TM = Mn, Fe, Co, Ni, Cu), were grown by pulsed laser deposition (PLD), in order to study the role of dopants in the origin and significance of room temperature ferromagnetism in these systems. The crystallographic structures and their magnetic properties were characterized and the experimental results are compared to ab-initio calculations previously reported. The films are ferromagnetic at room temperature in the cases of Fe, Co, Ni and even Cu impurities, but not in the case of Mn doping. Our results support the hypothesis that oxygen vacancies play a key role in the origin of magnetism in doped TiO2 films, and can explain the diversity of magnetic moments observed experimentally for films grown under different conditions.
format Articulo
Articulo
author Duhalde, S.
Rodríguez Torres, Claudia Elena
Vignolo, M. F.
Golmar, F.
Chillote, C.
Cabrera, Alejandra Fabiana
Sánchez, Francisco Homero
author_facet Duhalde, S.
Rodríguez Torres, Claudia Elena
Vignolo, M. F.
Golmar, F.
Chillote, C.
Cabrera, Alejandra Fabiana
Sánchez, Francisco Homero
author_sort Duhalde, S.
title Ferromagnetism in doped TiO2 thin films prepared by PLD
title_short Ferromagnetism in doped TiO2 thin films prepared by PLD
title_full Ferromagnetism in doped TiO2 thin films prepared by PLD
title_fullStr Ferromagnetism in doped TiO2 thin films prepared by PLD
title_full_unstemmed Ferromagnetism in doped TiO2 thin films prepared by PLD
title_sort ferromagnetism in doped tio2 thin films prepared by pld
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/127815
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