Acoustic properties of the complex thiosulphate (NH4)9[Cu(S2O3)4]Br2

被引：0

作者：

Straube, Ulrich ^{[1
]}

Beige, Horst ^{[1
]}

机构：

[1] Martin-Luther-Universitaet Halle-W., Fachbereich Physik, Friedemann-Bach-Pl. 6, D-06108 Halle/Saale, Germany

来源：

Ferroelectrics | 2000年 / 238卷 / 01期

关键词：

Acoustic properties - Crystals - Elasticity - Phase transitions - Sulfur compounds - Synthesis (chemical) - Temperature - Ultrasonic velocity;

D O I：

10.1080/00150190008008782

中图分类号：

学科分类号：

摘要：

We investigated a crystal of the complex thiosulphate (NH4)9[Cu(S2O3)4]Br2. It was synthesized by Bohaty and coworkers in Koeln (Germany). The ferroelectric phase transition of this crystal at 165 K was discovered in this research group, too. We measured the ultrasound velocity of the crystal in dependence on the temperature with an automatic measurement equipment including a fast sampling oscilloscope HP54750. Two elastic stiffnesses were found to exhibit a remarkable anomalous temperature behaviour.

引用

页码：179 / 185

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