Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1250191 | Vibrational Spectroscopy | 2013 | 6 Pages |
Abstract
In this work we investigate the vibrational properties of anhydrous and hydrated yttrium molybdate as a function of hydrostatic pressure. An analysis of vibrational modes suggests that the anhydrous material experiences a phase transformation from orthorhombic to a lower symmetry phase (probably monoclinic) about 0.3 GPa, and to a highly disordered phase above 2.4 GPa. The structural transformation to the high-pressure disordered phase is not reversible and suggests the onset of a pressure-induced amorphization process. The vibrational mode dependence on pressure is discussed considering lattice dynamics calculations.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
A.C. Torres Dias, C. Luz Lima, W. Paraguassu, K. Pereira da Silva, P.T.C. Freire, J. Mendes Filho, B.A. Marinkovic, Kimberly J. Miller, Mary Anne White, A.G. Souza Filho,