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 0304-8853

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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 (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
ISSN:	0304-8853
Date:	June 2006
Volume:	Vol.301
Number:	No.1
Number of Pages:	8
Page Range:	pp. 212-219
Identification Number:	10.1016/j.jmmm.2005.06.027
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/33723

Data sourced from Thomson Reuters' Web of Knowledge

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