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Magnetic and structural properties of Zn‐doped yttrium iron garnet nanoparticles
Author(s) -
PeñaGarcia R.,
Delgado A.,
Guerra Y.,
Farias B. V. M.,
Martinez D.,
Skovroinski E.,
Galembeck A.,
PadrónHernández E.
Publication year - 2016
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.201533078
Subject(s) - lattice constant , yttrium iron garnet , yttrium , doping , materials science , magnetic moment , analytical chemistry (journal) , ion , phase (matter) , condensed matter physics , chemistry , metallurgy , physics , oxide , chromatography , optoelectronics , organic chemistry , diffraction , optics
Zn‐doped YIG was prepared using the sol–gel method with TGA measurements showing the phase formation between 900 and 1000 °C. XRD analysis showed close to 1100 °C the formation of Franklinite phase, coexisting with the cubic YIG. Y 3 (Fe 1– x Zn x ) 5 O 12 samples with different Zn concentrations ( x = 0, 0.01, 0.03, and 0.05) were prepared and analyzed for a magnetic study. A decrease in magnetic moment of the samples was confirmed on increasing the concentration of Zn ions. This decrease is due to the substitution of Fe ions by Zn. This also confirmed the results of XRD showing the linear increase in the lattice parameter. Fittings by Bloch's law shows results compared with those already reported in the literature. The exponent and constant for the Bloch law presented similar values to those reported for YIG doped with other ions. We obtained the parameter α ∼10 −6 K − n with n close to 1.9 for all samples.