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Title: Structural properties of Fe3+ substituted yttrium iron garnet
Authors: Vara, R P
Shah, H J
Pandya, M P
Chhantbar, M C
Modi, K B
Keywords: Yttrium iron garnet;Structural properties;Lattice constant;Transport properties
Issue Date: Feb-2004
Publisher: NISCAIR-CSIR, India
IPC Code: G 01N 13/09
Abstract: The compositional dependence of structural parameters like cation distribution, lattice constant, X-ray density, Bulk density, porosity, shrinkages and particle size have been studied for Y3-xFe5+xO12 (x = 0.00, 0.05. 0.15 and 0.30) garnet system. It is found that substituted Fe3+ ions occupy dodecahedral sites while Fe3+ ion concentration, determined through EDAX, occupy octahedral (a-) sites in the crystal structure. The values of lattice constant obtained from experimentally estimated cation distribution are not in agreement with measured values; suggest that practically Fe3+ ion substitution does not affect the lattice constant. All the parameters studied are interlinked having effect on transport properties.
Page(s): 117-120
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(02) [February 2004]

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