Synthesis, structure and vibrational properties of GdIG(X):YIG(1-X) ferrimagnetic ceramic composite

Y3Fe5O12 (YIG) crystal has many attractive characteristics, such as low dielectric loss, narrow resonance linewidth in microwave region and also possesses a good saturated magnetization value. Composite technology in general sets out to combine materials in such a way that the properties of the composite are the optimum for a particular application. The different materials work together to give a composite of unique properties. In this work, we present the preparation procedure (obtaining) of the GdIG(x):YIG(1-X) ferrimagnetic ceramic matrix composite by mechanical alloying and calcinations. Besides that, we study its properties by X-ray powder diffraction, infrared, Micro-Raman, Fe-57 Mossbauer spectroscopy and hysteresis loop measurements. (c) 2008 Elsevier Ltd. All rights reserved.