OBSERVATION OF A BIREFRINGENCE ANOMALY AT THE 93-K PHASE-TRANSITION IN K2SEO4

被引：4

作者：

BILLESBACH, DP ^{[1
]}

ULLMAN, FG ^{[1
]}

机构：

[1] UNIV NEBRASKA,DEPT ELECT ENGN,LINCOLN,NE 68588

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.43.11432

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The relative birefringence of K2SeO4 was measured by the rotating-analyzer method, over a temperature range from 140 to 80 K. We report here clear observation of anomalous birefringence at the incommensurate-ferroelectric phase transition at 93 K. The observation of anomalous birefringence at both the paraelectric-incommensurate and the incommensurate-ferroelectric phase transitions is consistent with low-frequency dielectric measurements and illustrates the complementary nature of these two measurements.

引用

页码：11432 / 11434

页数：3

共 8 条

[1] BIREFRINGENCE MEASUREMENTS OF THE UNIAXIAL-STRESS DEPENDENCE OF THE INCOMMENSURATE PHASE-TRANSITION IN K2SEO4 [J].