Soft-mode behavior in lanthanide-modified bismuth titanates

The 180° Raman scattering experiment has been performed in Bi 4 -x Gd x Ti 3 O 12 (x = 0, 0.1, 0.28, and 0.36) and Bi 4 -x La x Ti 3 O 12 (x = 0, 0.17, and 0.31) single crystals. The materials of x ≠ 0 are known to undergo successive phase transitions at T H and T L (

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Bibliographic Details
Published in:Ferroelectrics 2017-05, Vol.512 (1), p.52-57
Main Authors: Suzuki, Shunsuke, Mogami, Toru, Nakamura, Shota, Tsujimi, Yuhji, Iwata, Makoto
Format: Article
Language:English
Subjects:
antiferrodistortive soft-mode
Bismuth
Bond strength
Bonding strength
Crystals
layered perovskite
Phase transitions
Raman scattering
Raman spectra
Scattering
Single crystals
Titanates
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Description
Summary:The 180° Raman scattering experiment has been performed in Bi 4 -x Gd x Ti 3 O 12 (x = 0, 0.1, 0.28, and 0.36) and Bi 4 -x La x Ti 3 O 12 (x = 0, 0.17, and 0.31) single crystals. The materials of x ≠ 0 are known to undergo successive phase transitions at T H and T L (
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2017.1355163