Raman scattering study on phase transitions around 700-850°C in SrZrO3

Hirotaka Fujimori; Masato Kakihana; Koji Ioku; Seishi Goto; Masahiro Yoshimura

doi:10.14853/pcersj.2003S.0.520.0

Preprints of Annual Meeting of The Ceramic Society of Japan
Preprints of Fall Meeting of The Ceramic Society of Japan

Preprints of Annual Meeting of The Ceramic Society of Japan, 2003

Session ID : 2J09

DOI https://doi.org/10.14853/pcersj.2003S.0.520.0

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Host: The Ceramic Society of Japan

Raman scattering study on phase transitions around 700-850°C in SrZrO3

*Hirotaka Fujimori, Masato Kakihana, Koji Ioku, Seishi Goto, Masahiro Yoshimura

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Abstract

Raman spectra of SrZrO₃ have been successfully obtained between 600 and 1050°C. The Pnma to Imma and Imma to I4/mcm phase transitions were observed by measuring the variation of energies of phonon modes as a function of temperature. The results can be accounted for by terms of coupling between a zone-center optical mode and an elastic strain associated with a soft q≈0 acoustical phonon.

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