| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1805334 | Journal of Magnetism and Magnetic Materials | 2006 | 8 Pages |
Abstract
Yttrium iron garnet (YIG) powders with particle sizes of 9, 14, 25 and 60 nm 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 14 nm exhibited superparamagnetism. The blocking temperature (TBTB) decreased with decreasing particle size, whereas the anisotropy constant (K ) increased. The saturation magnetisation (MsMs) decreased with decreasing particle size. These variations are attributed to large surface-to-volume ratios in nanoparticles where the surface moments are predominant.
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Authors
M. Rajendran, S. Deka, P.A. Joy, A.K. Bhattacharya,