Soft modes condensation in Raman spectra of (Pb–La)(Zr–Sn–Ti)O3 ceramics

Autor: Alexander N. Vtyurin, Alexander S. Krylov, Svetlana N. Krylova, Alexander S. Oreshonkov, Xiaoyong Wei, Yujun Feng, Ran Xu, Tian Zhao
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Advanced Dielectrics, Vol 9, Iss 3, Pp 1950024-1-1950024-4 (2019)
Druh dokumentu: article
ISSN: 2010-135X
2010-1368
2010135X
41521706
DOI: 10.1142/S2010135X19500243
Popis: Low frequency Raman spectra of (Pb0.97La0.02)(Zr0.864Sn0.04Ti0.096)O3 ceramic samples have been studied near cubic to antiferroelectric phase transition at about 200∘C. A set of low frequency soft modes were observed restoring below the transition point, in addition to the known one above 100cm−1. These modes show strong damping anomalies at the transition point that supposes considerable intermode interactions via dampings.
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