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Type: Artigo de periódico
Title: Nanocrystals Of Bafe12o19 Obtained By The Proteic Sol-gel Process
Author: Fortes S.S.
Duque J.G.S.
Macedo M.A.
Abstract: Nanocrystals of BaFe12O19, with a small amount of the BaFe2O4, were obtained by means of the proteic sol-gel process together. The results demonstrated that the magnetic and crystallographic properties are dependent on the calcination temperature and the values of Mr/Ms are very close to 0.5, which is the expected value by the Stoner-Wohlfarth model. The best calcination temperature was at 900 °C with Ms=55.5 emu/g, Hc=4.1 kOe and crystallite size 39 nm. © 2006 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.physb.2006.05.158
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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