Structural phase transitions in CdTiO3

被引：5

作者：

Kabirov, YV ^{[1
]}

Kul'buzhev, BS ^{[1
]}

Kupriyanov, MF ^{[1
]}

机构：

[1] Rostov State Univ, Rostov Na Donu 344090, Russia

来源：

PHYSICS OF THE SOLID STATE | 2001年 / 43卷 / 10期

关键词：

Oxygen; Spectroscopy; Phase Transition; State Physics; Perovskite;

D O I：

10.1134/1.1410640

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The reconstructive phase transition from the ilmenite-like CdTiO3 modification to the perovskite modification is investigated thoroughly. It is revealed that the reconstructive transition is determined by size effects, results in the formation of the closest packing of the ilmenite CdTiO3 structure, and is irreversible with a decrease in temperature. The perovskite CdTiO3 modification undergoes displacive structural phase transitions at temperatures of 110, 220, and 380 degreesC. The first displacive phase transition is isostructural, whereas the second and third transitions are associated with rotations of oxygen octahedra. (C) 2001 MAIK "Nauka/Interperiodica".

引用

页码：1968 / 1971

页数：4

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