HIGH-TEMPERATURE AND HIGH-PRESSURE RAMAN-STUDY OF LIVO3

被引：25

作者：

GRZECHNIK, A

MCMILLAN, PF

机构：

[1] Department of Chemistry, Arizona State University, Tempe

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1995年 / 56卷 / 02期

关键词：

OXIDES; HIGH PRESSURE; INFRARED SPECTROSCOPY; RAMAN SPECTROSCOPY; CRYSTAL STRUCTURE;

D O I：

10.1016/0022-3697(94)00145-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigate the vibrational behavior of LiVO3 in the pyroxene structure, C2/c, using Raman spectroscopy at high temperature and high pressure. With increasing temperature, no phase changes are observed. Upon pressurizing, we find three phase transitions at 20, 45 and 65 kbar. The third phase transition is associated with the break-down of the chain structure. We discuss a possible mechanism for pyroxene-ilmenite or pyroxene-LiNbO3-type displacive transformations.

引用

页码：159 / 164

页数：6

共 27 条

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