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Size-dependent magnetic properties of nanocrystalline yttrium iron garnet powders
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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. doi:10.1016/j.jmmm.2005.06.027 ISSN 0304-8853.
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Official URL: http://dx.doi.org/10.1016/j.jmmm.2005.06.027
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 | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Journal of Magnetism and Magnetic Materials | ||||
Publisher: | Elsevier Science BV | ||||
ISSN: | 0304-8853 | ||||
Official Date: | June 2006 | ||||
Dates: |
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Volume: | Vol.301 | ||||
Number: | No.1 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 212-219 | ||||
DOI: | 10.1016/j.jmmm.2005.06.027 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Data sourced from Thomson Reuters' Web of Knowledge
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