Size-dependent magnetic properties of nanocrystalline yttrium iron garnet powders
Rajendra, M., Deka, S., Joy, P.A. and Bhattacharya, A. K.. (2006) Size-dependent magnetic properties of nanocrystalline yttrium iron garnet powders. Journal of Magnetism and Magnetic Materials, Vol.301 (No.1). pp. 212-219. ISSN 0304-8853Full text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.jmmm.2005.06.027
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 (T-B) decreased with decreasing particle size, whereas the anisotropy constant (K) increased. The saturation magnetisation (M-s) decreased with decreasing particle size. These variations are attributed to large surface-to-volume ratios in nanoparticles where the surface moments are predominant. (c) 2005 Published by Elsevier B.V.
|Item Type:||Journal Article|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
|Divisions:||Faculty of Science > Engineering|
|Journal or Publication Title:||Journal of Magnetism and Magnetic Materials|
|Publisher:||Elsevier Science BV|
|Official Date:||June 2006|
|Number of Pages:||8|
|Page Range:||pp. 212-219|
|Access rights to Published version:||Restricted or Subscription Access|
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