High-resolution x-ray diffraction study of structural phase transition in srtio3

Atsushi Okazaki, Yuji Soejima, Nobuhiko Ohama, K. Alex Müller

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

Recent experiments on the 105 K transition in SrTiO3 by means of the high-angle double-crystal X-ray diffractometry (HADOX) are presented and discussed. The temperature dependence of the Bragg peak-width shows two anomalies: A peak in the temperature range Tc ± 2 K and a gradual increase over a range of about 10 K below Tc. The former is due to critically enhanced fluctuation and is connected with the precursor behaviour of the lattice constant. The latter is attributed to a change in mosaicity and is consistent with an anomaly in the intensity vs. temperature relation. By combining HADOX with the use of white X-rays and an energy sensitive detector, all the results mentioned above are found being common in the region with the depth from the specimen surface 1 to 57 pm, and regarded as representing bulk behaviours.

本文言語英語
ページ(範囲)257-259
ページ数3
ジャーナルJapanese Journal of Applied Physics
24
DOI
出版ステータス出版済み - 1 1985

All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • 物理学および天文学(全般)

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