Use of X-ray Anomalous Dispersion: The Superstructure of PbZrO3

Y. Soejima, K. Yamasaki, K. F. Fischer

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)


Intensity measurements of several superlattice reflections of lead zirconate, PbZrO3, have been made on single-crystal specimens as a function of incident X-ray energy around the Pb LIII and Zr K absorption edges. Anomalies in the squared structure factor |F(hkl)|2 of superlattice reflections with l odd, and of those with l even, are observed at both the absorption edges. This indicates that both Pb and Zr atoms show an out-of-phase type of displacement, not only on the xy plane but also along the z axis in the orthorhombic cell. The results of the Zr displacement are in contradiction with the models in the literature. It is shown that the use of X-ray anomalous dispersion is effective to obtain information on the atomic displacement and to investigate the superstructure.

ジャーナルActa Crystallographica Section B: Structural Science
出版ステータス出版済み - 6 1 1997

All Science Journal Classification (ASJC) codes

  • 生化学、遺伝学、分子生物学(全般)


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