THE SOFT MODE PHASE-TRANSITION OF SRBI2NB2O9

被引：29

作者：

LIU, JJ

ZOU, GT

YANG, HB

CUI, QL

机构：

[1] State Key Laboratory for Superhard Materials, Institute of Atomic and Molecular Physics, Jilin University, Changchun

来源：

SOLID STATE COMMUNICATIONS | 1994年 / 90卷 / 06期

关键词：

D O I：

10.1016/0038-1098(94)90800-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A soft mode have been observed in the Raman spectra of SrBi2Nb2O9. The frequency of the soft mode decreases and the soft mode becomes overdamped on approaching the Curie point. Its linewidth diverges as GAMMA (T) = GAMMA (0)[(T(c)-T)/T(c)]-1. The soft mode seems to be associated with the ferro- to para- electric phase transition.

引用

页码：365 / 367

页数：3

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