Dielectric and Raman investigations on M2(SO4).Te(OH)6 (M =K, Rb and Cs)

被引：39

作者：

Khemakhem, H ^{[1
]}

机构：

[1] Fac Sci, Lab Etat Solide, Sfax 3038, Tunisia

来源：

FERROELECTRICS | 1999年 / 234卷 / 1-4期

关键词：

D O I：

10.1080/00150199908225281

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dielectric and Raman investigations in the temperature and frequency ranges 300 - 550K and 10(2) - 10(4)Hz respectively show that M-2(SO4). Te(OH)(6) with (M = K, Rb and Cs) materials present three phase transition. The first transition observed at 480, 440 and 460K respectively for M = K, Rb and Cs and should be probably of order-disorder type. The second one was observed only for Rb-2(SO4). Te(OH)(6) and Cs-2(SO4). Te(OH)(6) respectively at 510 and 495K. The third peak observed at 490, 520 and 510K for M = K, Rb and Cs respectively can be attributed to a ferroelectric-paraelectric phase transition.

引用

页码：47 / 59

页数：13

共 22 条

[1] CRYSTAL-STRUCTURE OF AN ADDUCT OF TELLURIC ACID WITH POTASSIUM FLUORIDE TE(OH)6.2KF - COMPOUND WITH SHORT O-H...F HYDROGEN-BONDS [J].