Journal
CHEMICAL PHYSICS
Volume 323, Issue 2-3, Pages 204-210Publisher
ELSEVIER
DOI: 10.1016/j.chemphys.2005.08.055
Keywords
yttrium iron garnet; YIG; iron aluminium garnets; IAG; sol-gel synthesis
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A sol-gel method based on in situ generation of mixed-metal chelates by complexing metal ions with 1,2-ethanediol or tartaric acid in an aqueous media has been elaborated to prepare iron containing garnets, Y3Fe5O12 (YIG) and Fe3Al5O12 (IAG). The X-ray diffraction patterns (XRD) of the powders sintered at 1000 degrees C showed the formation of monophasic YIG, however the formation of iron aluminium garnet at the same synthesis conditions does not proceed. The phase composition of the samples was additionally characterized by infrared (IR) spectroscopy. Micro-structural features of the polycrystalline samples were studied by scanning electron microscopy (SEM). The magnetic properties of all these sot-gel derived materials were investigated by Mossbauer spectroscopy and magnetic susceptibility measurements. (c) 2005 Elsevier B.V. All rights reserved.
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