Room temperature ferromagnetism in Th(1-x)Fe(x)O(2-delta) (x=0.0, 0.05, 0.10, 0.15, 0.20 and 0.25) nanoparticles

Jayakumar, O. D., Gopalakrishnana, I. K., Vinu, A., Asthana, A. and Tyagi, A. K. (2008) Room temperature ferromagnetism in Th(1-x)Fe(x)O(2-delta) (x=0.0, 0.05, 0.10, 0.15, 0.20 and 0.25) nanoparticles. Journal of Alloys and Compounds, 461 1-2: 608-611. doi:10.1016/j.jallcom.2007.07.081


Author Jayakumar, O. D.
Gopalakrishnana, I. K.
Vinu, A.
Asthana, A.
Tyagi, A. K.
Title Room temperature ferromagnetism in Th(1-x)Fe(x)O(2-delta) (x=0.0, 0.05, 0.10, 0.15, 0.20 and 0.25) nanoparticles
Journal name Journal of Alloys and Compounds   Check publisher's open access policy
ISSN 0925-8388
1873-4669
Publication date 2008-08
Sub-type Article (original research)
DOI 10.1016/j.jallcom.2007.07.081
Volume 461
Issue 1-2
Start page 608
End page 611
Total pages 4
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Formatted abstract
Nanocrystalline (Th1-xFex)O2-δ particles with different Fe concentrations (x = 0.0, 0.05, 0.10, 0.15, 0.20 and 0.25) have been prepared by a gel combustion method. Rietveld refinement analyses of X-ray diffraction data revealed the formation of an impurity free cubic type Th1-xFexO2-δ structure up to x = 0.20. This observation is further confirmed from the detailed studies conducted on 10 at.% Fe doped ThO2 using high-resolution transmission electron microscopy (HRTEM) imaging and indexing of the selected-area electron diffraction (SAED) patterns. DC magnetization studies as a function field indicate that they are ferromagnetic with Curie temperature (Tc) well above room temperature.
Keyword Fe doped ThO(2)
Room temperature ferromagnetism
dc magnetization
High-resolution transmission electroscopy
Selected-area electron diffraction
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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