High-pressure spectroscopic studies of europium gallium and gadolinium aluminum garnets

Middleton, RC and Muthu, DVS and Kruger, MB (2008) High-pressure spectroscopic studies of europium gallium and gadolinium aluminum garnets. In: Solid State Communications, 148 (7-8). pp. 310-313.

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Abstract

In this paper we report high-pressure Raman and mid-infrared studies of europium gallium garnet (Eu3Ga5O12) and gadolinium aluminum garnet (Gd3Al5O12). The europium/gadolinium garnets were studied up to 22/10 GPa using Raman spectroscopy and up to 15/22 GPa using infrared spectroscopy. The spectra do not show any clear phase transition over the investigated pressures for both the samples. However, for the case of Eu3Ga5O12 the Raman modes broaden significantly beginning at about 12.5 GPa up to the highest pressure and remain broad even after quenching to atmospheric pressure.

Item Type:	Journal Article
Publication:	Solid State Communications
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Strain,high-pressure;Inelastic light scattering;Light absorption and reflection.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	14 Sep 2009 09:58
Last Modified:	19 Sep 2010 04:57
URI:	http://eprints.iisc.ac.in/id/eprint/17555

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