Analysis of LiKSO4 crystals in the temperature range from 573 to 943 K

被引：21

作者：

Pinheiro, CB ^{[1
]}

Pimenta, MA

Chapuis, G

Speziali, NL

机构：

[1] Univ Fed Minas Gerais, Icex, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil

[2] Univ Lausanne, Inst Cristallog, BSP, CH-1015 Lausanne, Switzerland

来源：

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 2000年 / 56卷

关键词：

D O I：

10.1107/S0108768100003219

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structural phases observed in LiKSO4 crystals due to thermotropic transitions have been studied for more than a century. Nowadays many different phases are referenced, but some of the results are still controversial. Structural studies by single-crystal X-ray diffraction from room temperature to 803 K are presented here. Phase II (708 < T < 943 K) is extensively discussed on the basis of ordered and disordered models, using harmonic and anharmonic atomic displacements, and considering a twinned crystal composed of three orthorhombic domains. Analyses of the same phase at different temperatures determine the best structure model.

引用

页码：607 / 617

页数：11

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