Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 422, Issue -, Pages 425-433Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2016.09.041
Keywords
Iron garnets; Sol-gel processing; Microstructure; Mossbauer spectroscopy; Magnetization measurements
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The magnetic nanosized rare earth iron garnets (R3Fe5O12, where R=Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) were prepared by an aqueous sol-gel method. Herein we present, that all these garnets can be obtained by this effective synthesis method simply by changing the temperature of the final annealing. It was also demonstrated, that a different annealing temperature leads to a different particle size distribution of the final product. The SEM analysis results revealed that the smallest particles were formed in the range of 75-130 nm. The phase purity and structure of the rare earth iron garnets were estimated using XRD analysis and Mossbauer spectroscopy. Magnetic properties were determined by magnetization measurements. The relation between the particle size, composition and magnetic properties of the sol-gel derived garnets were also discussed in this study.
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