[16p-S4_202-1~10] 9.1 Dielectrics, ferroelectrics

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[16p-S4_202-1] Three-Dimensional Reciprocal Space Mapping of Ferroelectric BiFeO₃-BaTiO₃ Single Crystals around the Morphotropic Phase Boundary

〇Kakeru Miyata¹, Hisato Yabuta¹ (1.ISEE, Kyushu Univ.)

Keywords:

X-ray diffraction,ferroelectric material,three-dimensional space mapping

BiFeO₃-BaTiO₃ with compositions near the morphotropic phase boundary is known to exhibit ferroelectricity while presenting a pseudo-cubic diffraction pattern. Three-dimensional reciprocal space mapping was constructed from X-ray diffraction data obtained from a single-crystal specimen, and the crystal structure was systematically analyzed. The results demonstrate peak splitting and diffuse scattering features that cannot be accounted for by a cubic structural model, indicating the presence of ferroelectric domains and lattice distortions.