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

Journal of Advanced Dielectrics

Tian Zhao¹  Xiaoyong Wei¹  Ran Xu¹  Yujun Feng¹  Alexander N. Vtyurin²  Alexander S. Oreshonkov²  Svetlana N. Krylova²  Alexander S. Krylov² 

[1] Electronic Materials Research, Laboratory & Intl. Center for Dielectric Research, Xi’an 710049, P. R. China;Kirensky Institute of Physics & Siberian, Federal University, Krasnoyarsk 660036, Russia;

关键词: PZT ceramics;    phase transition;    Raman scattering;    soft mode;   

DOI  :  10.1142/S2010135X19500243

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown