Temperature dependence of Zr and Ti K-edge XANES spectra for para- and ferro-electric perovskite-type PbZrO3, PbTiO3 and BaTiO3

A. Yoshiasa, T. Nakatani, T. Hiratoko, T. Tobase, A. Nakatsuka, M. Okube, H. Arima, K. Sugiyama

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

Zr and Ti K-edge XANES spectra of PbZrO3, PbTiO3 and BaTiO3 perovskite-type compounds were measured in the temperature range from 10K to 850K. Quantitative comparisons for the near-edge spectra were performed in a wide temperature range using the absorption intensity invariant point (AIIP) standardization. Clear temperature dependence for pre-edge shoulder is identified by the calculating the temperature difference of the XANES spectrum intensity. Decrease of pre-edge shoulder and peak intensity is observed only in the para- and ferro-electric phases and draw curves, not straight lines. The gradients for shoulder and pre-edge peak intensity are rich in a variety. The decrease in absorption of pre-edge peak and shoulder is speculated due to the shift from the off-centre position of the Zr atom with respect to the oxygen octahedron to center position. The Zr ion in the PbZrO3 para-electric phase has same temperature behaviors of Ti ions in the ferroelectric perovskite.

Original languageEnglish
Article number012121
JournalJournal of Physics: Conference Series
Volume712
Issue number1
DOIs
Publication statusPublished - 2016
Event16th International Conference on X-Ray Absorption Fine Structure, XAFS 2015 - Karlsruhe, Germany
Duration: 2015 Aug 232015 Aug 28

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Temperature dependence of Zr and Ti K-edge XANES spectra for para- and ferro-electric perovskite-type PbZrO<sub>3</sub>, PbTiO<sub>3</sub> and BaTiO<sub>3</sub>'. Together they form a unique fingerprint.

  • Cite this