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Size-dependent magnetic properties of nanocrystalline yttrium iron garnet powders
- Source :
-
Journal of Magnetism & Magnetic Materials . Jun2006, Vol. 301 Issue 1, p212-219. 8p. - Publication Year :
- 2006
-
Abstract
- Abstract: Yttrium iron garnet (YIG) powders with particle sizes of 9, 14, 25 and 60nm have been synthesised and their magnetic properties have been studied as a function of particle size and temperature. The particles with sizes of 9 and 14nm exhibited superparamagnetism. The blocking temperature () decreased with decreasing particle size, whereas the anisotropy constant (K) increased. The saturation magnetisation () decreased with decreasing particle size. These variations are attributed to large surface-to-volume ratios in nanoparticles where the surface moments are predominant. [Copyright &y& Elsevier]
- Subjects :
- *YTTRIUM iron garnet
*FERRITES
*MAGNETISM
*NANOPARTICLES
Subjects
Details
- Language :
- English
- ISSN :
- 03048853
- Volume :
- 301
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Magnetism & Magnetic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 20187084
- Full Text :
- https://doi.org/10.1016/j.jmmm.2005.06.027