Department of Earth Sciences, Uppsala University, SE-752 36, Uppsala, Sweden

Temperature induced structural phase transition in Sr3-xCaxFe2TeO9 (0 ≤ x ≤ 1) probed by Raman and Mossbauer techniques

Published in Journal of Molecular Structure

A series of perovskites Sr 3ex Ca x Fe 2 TeO 9 (0 x 1) have been prepared in polycrystalline form by solid estate reaction method in air. These materials have been studied by Xeray powder diffraction method (XRPD) and Raman spectroscopy. An analysis of the XRD patterns at room temperature has shown that these compounds crystallize in a tetragonal s...