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Ferromagnetism in Mechanically Milled SnCoO ( x=0 to 0.10) Compounds.
- Source :
- Journal of Superconductivity & Novel Magnetism; Jun2012, Vol. 25 Issue 4, p1017-1023, 7p, 1 Black and White Photograph, 2 Charts, 5 Graphs
- Publication Year :
- 2012
-
Abstract
- Co-doped SnO based diluted magnetic oxides were prepared by mechanical alloying followed by high temperature annealing. XRD patterns could be refined to P4/mnm space group with typical lattice parameters a= b=4.733 Å and c=3.184 Å. Presence of a minor spinel structure based impurity phase was detected. Room temperature ferromagnetism was observed with a maximum saturation magnetization of 5.9 emu/g for SnCoO sample. The magnetization data after subtracting the contribution from the impurity phase could be analyzed based on a bound magnetic polaron model. Temperature variation of magnetization exhibits clear paramagnetic to ferromagnetic transition with a maximum T of 640 K for 2 at% Co-doped sample. Susceptibility in paramagnetic region could be fitted to the Curie-Weiss law. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15571939
- Volume :
- 25
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Journal of Superconductivity & Novel Magnetism
- Publication Type :
- Academic Journal
- Accession number :
- 76459398
- Full Text :
- https://doi.org/10.1007/s10948-011-1341-z