Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/109023
Type: Artigo de periódico
Title: Investigations Of Lanthanum Doping On Magnetic Properties Of Nano Cobalt Ferrites
Author: Kumar P.
Sharma S.K.
Knobel M.
Chand J.
Singh M.
Abstract: The magnetic properties of nano-crystallite cobalt lanthanum ferrite (CoLaxFe2-x O4) with varied quantities of lanthanum (x∈=∈0, 0.1, 0.15, 0.2, 0.25, 0.3) prepared by co-precipitation method have been studied by vibrating sample magnetometer (VSM) and LCR meter. X-ray diffraction (XRD) and transmission electron microscopy (TEM) confirmed the size, structure, and morphology of the ferrite samples. The average crystallite size varied from 17.83 nm to 49.99 nm. All the samples, although, in nano range, show significant hysteresis. The saturation magnetization (Ms) values decreased from 60.57 emu/g to 30.15 emu/g. The remanence (MR) fell from 10.85 emu/g to 6.39 emu/g. Doping with lanthanum La3+ ions modulates significantly the magnetic properties of cobalt spinel ferrites without sacrificing the ferromagnetic character. © 2011 Springer Science+Business Media, LLC.
Editor: 
Rights: fechado
Identifier DOI: 10.1007/s10832-011-9649-4
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-80052960741&partnerID=40&md5=b05af781cbdbfed72654cc2ed7e7626d
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.