Article,
Raman spectra of Ga3PO7 single crystal
MATERIALS LETTERS, (2013)
DOI: 10.1016/j.matlet.2013.01.130
Abstract
The room temperature phonon modes of trigallium phosphorus heptaoxide
(Ga3PO7) single crystal have been determined by polarized Raman
spectroscopy. The Ga3PO7 single crystal exhibits a trigonal structure
belonging to the space group R3m (C-3t'(5)) with three molecules per unit cell (Z=3). The framework structure of the Ga3PO7 crystal consists
of PO4 tetrahedra and Ga3O10 clusters. Since the PO4 tetrahedra are more
tightly bound than the GaO5 trigonal bipyramids, only the internal modes
of the PO4 are observed. We observed 7A(1)(TO)+7E(TO) out of
7A(1)(TO)+10E(TO) vibrations predicted by the Group Theory. (C) 2013
Elsevier B.V. All rights reserved.
