Title
Low temperature magnetic ordering in Fe-doped TiO2 samples
Date Issued
01 January 2010
Access level
metadata only access
Resource Type
research article
Author(s)
Bilovol V.
Navarro A.M.M.
Sánchez D.R.
Baggio-Saitovich E.M.
Torres C.E.R.
Sánchez F.H.
Cabrera A.F.
Publisher(s)
Springer Netherlands
Abstract
Fe-doped TiO2 samples with different Fe content prepared by mechanical alloying have been investigated by means of Mössbauer spectroscopy at 300 and 4.2 K. The results indicate the coexistence of Fe2+ and Fe3+ ions in paramagnetic states at room temperatures in the rutile structure. All samples present magnetic order at 4.3 K. When the Fe concentration increases the Fe ions in the rutile matrix became closer giving the possibility of strong magnetic interactions between them. The temperature evolution of the magnetic order was followed for the 15 at.% of Fe sample. The Fe-doped oxide formed for this composition orders below 20 K reaching an almost totally magnetic ordered state at 4.3 K. © Springer Science + Business Media B.V. 2009.
Start page
155
End page
159
Volume
195
Issue
1
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-70749130684
Source
Hyperfine Interactions
Resource of which it is part
Hyperfine Interactions
ISSN of the container
03043843
Source funding
Consejo Nacional de Investigaciones Científicas y Técnicas
Sources of information: Directorio de Producción Científica Scopus