High-resolution X-ray diffraction study of the cubic-to-tetragonal transition in BaTiO3
1987; Elsevier BV; Volume: 62; Issue: 10 Linguagem: Inglês
10.1016/0038-1098(87)90409-1
ISSN1879-2766
AutoresKazutaka Irie, M. Shiono, Hiromi Nakamura, N. Ohnishi, Atsushi Okazaki,
Tópico(s)X-ray Diffraction in Crystallography
ResumoAbstract A drastic change is found in the diffraction pattern of a single-crystal specimen of BaTiO3. At and just below the transition temperature, the original single peak of 004 of the tetragonal phase splits or collapses into a group of small peaks. They appear around the positions of 004 and 400, and probably correspond to different orientations of grains and domains. The positions and relative intensities of the peaks randomly vary with time and temperature. These features are observed for both heating and cooling processes.
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