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Magnetic properties of Ce,Dy‐substituted yttrium iron garnet ferrite powders fabricated using a sol–gel method
Author(s) -
Xu Haitao,
Yang Hua
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200622524
Subject(s) - materials science , yttrium , x ray photoelectron spectroscopy , analytical chemistry (journal) , magnetization , magnetometer , yttrium iron garnet , ferrite (magnet) , particle size , diffraction , saturation (graph theory) , nanoparticle , nuclear magnetic resonance , nanotechnology , chemistry , metallurgy , condensed matter physics , magnetic field , optics , oxide , composite material , chromatography , physics , mathematics , quantum mechanics , combinatorics
Abstract Y 3– x – y Ce x Dy y Fe 5 O 12 ( x = 0–0.1, y = 0–1.0) nanoparticles were fabricated by a sol–gel method. The crystalline structures and magnetic properties of the samples were investigated by X‐ray diffraction (XRD), scanning probe microscopy (SPM), X‐ray photoelectron spectroscopy (XPS), and vibrating sample magnetometry (VSM). The XRD patterns of Y 3– x – y Ce x Dy y Fe 5 O 12 have only peaks of the garnet structure and the mean size range from 42 to 60 nm. The particles' sizes observed for all the samples analyzed by SPM are in good agreement with these data from XRD. Results of VSM show that the saturation magnetization increases with increasing Ce content ( x ) and decreases with increasing Dy content ( y ) in a linear manner. The saturation magnetization increases with increasing particle size. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)