Soft modes condensation in Raman spectra of(Pb-La)(Zr-Sn-Ti)O_(3)ceramics

作     者：Alexander N.Vtyurin Alexander S.Krylov Svetlana N.Krylova Alexander S.Oreshonkov Xiaoyong Wei Yujun Feng Ran Xu Tian Zhao 

作者机构：Kirensky Institute of Physics&Siberian Federal UniversityKrasnoyarsk 660036Russia Electronic Materials Research Laboratory&Intl.Center for Dielectric ResearchXi’an 710049P.R.China 

出 版 物：《Journal of Advanced Dielectrics》 (先进电介质学报（英文）)

年 卷 期：2019年第9卷第3期

页      面：25-28页

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

主　　题：PZT ceramics phase transition Raman scattering soft mode 

摘      要：Low frequency Raman spectra of(Pb_(0.97)La_(0.02)T(Zr_(0.864)Sn_(0.04)Ti_(0.096))O_(3)ceramic samples have been studied near cubic to antiferroelectric phase transition at about 200℃.A set of low frequency soft modes were observed restoring below the transition point,in addition to the known one above 100 cm^(-1).These modes show strong damping anomalies at the transition point that supposes considerable intermode interactions via dampings.