The two-step phase transition of titanite, CaTiSiO5: a synchrotron radiation study

Abstract

AbstractIn this study it is shown that the antiferrodistortive phase transition in titanite, CaTiSiOIn order to study the stepwise structural changes synchrotron radiation was used to collect X-ray diffraction data at 100 K, 295 K and 530 K on the 4-circle diffractometer at HASYLAB using a wavelength of 0.560(1) Å. A total of 2292 reflections were recorded at 100 K, 1540 at 295 K and 1442 at 530 K and reduced to 705 (100 K), 707 (295 K) and 358 (530 K) unique observations respectively (sin