@article {Larumbe:2012:1533-4880:2652,
title = "Ni Doped Fe3O4 Magnetic Nanoparticles",
journal = "Journal of Nanoscience and Nanotechnology",
parent_itemid = "infobike://asp/jnn",
publishercode ="asp",
year = "2012",
volume = "12",
number = "3",
publication date ="2012-03-01T00:00:00",
pages = "2652-2660",
itemtype = "ARTICLE",
issn = "1533-4880",
eissn = "1533-4899",
url = "https://www.ingentaconnect.com/content/asp/jnn/2012/00000012/00000003/art00131",
doi = "doi:10.1166/jnn.2012.5769",
author = "Larumbe, S. and Gomez-Polo, C. and P{\’e}rez-Landaz{\’a}bal, J. I. and Garc{\’ı}a-Prieto, A. and Alonso, J. and Fdez-Gubieda, M. L. and Cordero, D. and G{\’o}mez, J.",
abstract = "In this work, the effect of nickel doping on the structural and magnetic properties of Fe3O4 nanoparticles is analysed. Ni
x
Fe3x
O4 nanoparticles (x = 0, 0.04, 0.06 and 0.11) were obtained by chemical co-precipitation
method, starting from a mixture of FeCI2\textperiodcentered4H2O and Ni(AcO)2\textperiodcentered4H2O salts. The analysis of the structure and composition of the synthesized nanoparticles confirms their nanometer size (main sizes around 10 nm) and the inclusion of the Ni
atoms in the characteristic spinel structure of the magnetite Fe3O4 phase. In order to characterize in detail the structure of the samples, X-ray absorption (XANES) measurements were performed on the Ni and Fe K-edges. The results indicate the oxidation of the Ni atoms
to the 2+ state and the location of the Ni2+ cations in the Fe2+ octahedral sites. With respect to the magnetic properties, the samples display the characteristic superparamagnetic behaviour, with anhysteretic magnetic response at room temperature. The estimated magnetic
moment confirms the partial substitution of the Fe2+ cations by Ni2+ atoms in the octahedral sites of the spinel structure.",
}