We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Local Structure Analysis around Ti in Lead Zirconate Titanate by X‐Ray Fluorescence Holography.
- Authors
Hayashi, Kouichi; Lu, Cong; Ang, Artoni Kevin R.; Ohwada, Kenji; Xie, Yujuan; Hu, Wen; Matsushita, Tomohiro; Happo, Naohisa; Hosokawa, Shinya; Bokov, Alexei A.; Ye, Zuo-Guang
- Abstract
To clarify the mechanism of ferroelectricity in lead zirconate titanate (PZT), the local structure around Ti in a Pb(Zr0.7Ti0.3)O3 single crystal is investigated using X‐ray fluorescence holography. The raw hologram data are contaminated by periodic noise due to the fluctuation of the incident X‐ray intensity. The periodical noise is successfully removed using an inverse Fourier transformation method. From the filtered holograms, the atomic images around Ti can be reconstructed clearly. The reconstructions of B‐site cations demonstrate an outward displacement of the neighboring Ti from the ideal B‐site position, indicating an expansion of the local lattice around Ti. In addition, the splitting of Pb images is found, and the relative displacement between Ti and Pb atoms is deduced. These results contribute to the understanding of the local structure of PZT and can reveal the microscopic origins of very high dielectric and piezoelectric responses, which are essential for designing new and improved ferroelectric materials.
- Subjects
LEAD zirconate titanate; X-ray fluorescence; HOLOGRAPHY; FERROELECTRIC materials; FOURIER transforms; FERROELECTRICITY; SEPARATION of variables
- Publication
Physica Status Solidi (B), 2020, Vol 257, Issue 11, p1
- ISSN
0370-1972
- Publication type
Article
- DOI
10.1002/pssb.202000191