Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition
We present a study of crystalline structure, local environment around the magnetic atoms and magnetic behaviour of Fe0.3Ti0.7O2-δ films, produced by Pulsed Laser Deposition, as a function of oxygen pressure and substrate temperature. Dark films were obtained by deposition at low O2 pressure (between...
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2006
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v384_n1-2_p341_RodriguezTorres http://hdl.handle.net/20.500.12110/paper_09214526_v384_n1-2_p341_RodriguezTorres |
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paper:paper_09214526_v384_n1-2_p341_RodriguezTorres2023-06-08T15:50:29Z Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition Fe doped TiO2 films Magnetic semiconductors Thin films XAFS Coercive force Crystallization Deposition Ferromagnetic materials Magnetization Pulsed laser deposition Titanium oxides Fe doped TiO2 films Magnetic characterization Oxygen pressure Transparent films Thin films We present a study of crystalline structure, local environment around the magnetic atoms and magnetic behaviour of Fe0.3Ti0.7O2-δ films, produced by Pulsed Laser Deposition, as a function of oxygen pressure and substrate temperature. Dark films were obtained by deposition at low O2 pressure (between 2×10-3 and 10-2 Pa). These films are ferromagnetic with coercivities around 0.03-0.04 T. Fe atoms are found to be predominantly metallic Fe. Transparent films were obtained when deposition was performed at high O2 pressure (between 4 and 20 Pa). Fe atoms are mainly in +3 valence state. These films have a component magnetically ordered probably corresponding to α-Fe(Ti)2O3 and a paramagnetic one attributed to Fe substituted anatase. After a thermal treatment Fe changes to +2 valence state and α-Fe(Ti)2O3 orders in the ilmenite phase increasing ten times the saturation magnetization of the magnetically ordered (hysteretic) component. © 2006 Elsevier B.V. All rights reserved. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v384_n1-2_p341_RodriguezTorres http://hdl.handle.net/20.500.12110/paper_09214526_v384_n1-2_p341_RodriguezTorres |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Fe doped TiO2 films Magnetic semiconductors Thin films XAFS Coercive force Crystallization Deposition Ferromagnetic materials Magnetization Pulsed laser deposition Titanium oxides Fe doped TiO2 films Magnetic characterization Oxygen pressure Transparent films Thin films |
spellingShingle |
Fe doped TiO2 films Magnetic semiconductors Thin films XAFS Coercive force Crystallization Deposition Ferromagnetic materials Magnetization Pulsed laser deposition Titanium oxides Fe doped TiO2 films Magnetic characterization Oxygen pressure Transparent films Thin films Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition |
topic_facet |
Fe doped TiO2 films Magnetic semiconductors Thin films XAFS Coercive force Crystallization Deposition Ferromagnetic materials Magnetization Pulsed laser deposition Titanium oxides Fe doped TiO2 films Magnetic characterization Oxygen pressure Transparent films Thin films |
description |
We present a study of crystalline structure, local environment around the magnetic atoms and magnetic behaviour of Fe0.3Ti0.7O2-δ films, produced by Pulsed Laser Deposition, as a function of oxygen pressure and substrate temperature. Dark films were obtained by deposition at low O2 pressure (between 2×10-3 and 10-2 Pa). These films are ferromagnetic with coercivities around 0.03-0.04 T. Fe atoms are found to be predominantly metallic Fe. Transparent films were obtained when deposition was performed at high O2 pressure (between 4 and 20 Pa). Fe atoms are mainly in +3 valence state. These films have a component magnetically ordered probably corresponding to α-Fe(Ti)2O3 and a paramagnetic one attributed to Fe substituted anatase. After a thermal treatment Fe changes to +2 valence state and α-Fe(Ti)2O3 orders in the ilmenite phase increasing ten times the saturation magnetization of the magnetically ordered (hysteretic) component. © 2006 Elsevier B.V. All rights reserved. |
title |
Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition |
title_short |
Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition |
title_full |
Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition |
title_fullStr |
Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition |
title_full_unstemmed |
Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition |
title_sort |
structural and magnetic characterization of fe0.3ti0.7o2-δ films obtained by pulsed laser deposition |
publishDate |
2006 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v384_n1-2_p341_RodriguezTorres http://hdl.handle.net/20.500.12110/paper_09214526_v384_n1-2_p341_RodriguezTorres |
_version_ |
1768544826277494784 |