Ultrasonic measurement of the elastic constants of LiKSO4 between 300 and 370 K

被引：11

作者：

Godfrey, L

Philip, J

机构：

[1] COCHIN UNIV SCI & TECHNOL, INSTRUMENTAT CTR, COCHIN 682022, KERALA, INDIA

[2] MAHATMA GANDHI UNIV, SCH PURE & APPL PHYS, KOTTAYAM 686560, KERALA, INDIA

来源：

SOLID STATE COMMUNICATIONS | 1996年 / 97卷 / 07期

关键词：

ferroelectrics; elasticity; phase transitions; ultrasonics;

D O I：

10.1016/0038-1098(95)00577-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

All five independent elastic constants of LiKSO4 have been determined from absolute velocity measurements on single crystal samples using ultrasonic pulse echo overlap technique. The constant C-13 is reported for the first time. Measurement of the temperature variation of elastic constants between 300 and 370 K indicates no anomaly near 333 K, ruling out a phase transition occurring in the sample at this temperature reported in an earlier Brillouin scattering work.

引用

收藏

页码：635 / 638

页数：4

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