Indian Streams Research Journal

Volume : III, Issue : III, April - 2013

EFFECT OF ALUMINIUM ON STRUCTURAL AND MAGNETIC PROPERTIES OF Y2.8Eu0.2Fe5-xAlxO12 GARNET

S.S.JAWALE1, C.M.KALE2, S.D.MORE3, B.V. NALLE4, K.M. JADHAV

Published By : Laxmi Book Publication

Abstract :

Polycrystalline samples of aluminum substituted Yttrium – Europium rare earth garnet with generic formula Y2.8Eu0.2Fe5-xAlx (x = 0.0, 0.2 and 0.4) have been prepared by standard double sintering ceramic technology using AR grade oxides of respective ions (Y2O3, Eu2O3, Fe2O3 and Al2O3). The prepared samples were characterized by X-ray diffraction method (XRD). The analysis of room temperature X-ray diffraction patterns clearly indicates the formation of single phase cubic garnet structure. Using XRD data, the lattice constant was calculated for all the samples. The substitution of Al effects in decreasing the lattice constant. The decrease in lattice constant is attributed to difference in ionic radii of Fe3+ and Al3+ ions. The magnetic properties of all the samples were determined using hysteresis loop technique. The saturation magnetization and other magnetic parameter decreases due to substitution of Al3+ ions in place of Fe3+ ions.

Keywords :

• Y-Eu-Fe-Al Garnet
• X-ray diffraction
• Magnetization

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