Distortions of framework structures

被引：33

作者：

Dove, MT ^{[1
]}

Gambhir, M ^{[1
]}

Hammonds, KD ^{[1
]}

Heine, V ^{[1
]}

Pryde, AKA ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

PHASE TRANSITIONS | 1996年 / 58卷 / 1-3期

关键词：

D O I：

10.1080/01411599608242398

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We review the ''Rigid Unit Mode'' model that was developed to explain a number of features of framework silicate crystals composed of linked tetrahedral units, but which has implications also for the stability of perovskite structures if the octahedra have some degree of rigidity. The discussion includes the constraints on possible modes of deformation, experimental validation of the model, implications for the local structure of high-temperature phases, the local structures of defects, and the relationship to the soft-mode theory of displacive phase transitions.

引用

页码：121 / 143

页数：23

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