Stable modulated and homogeneous structures of quartz (SiO2):: Analysis of eigen-modes near phase transition points

被引：2

作者：

Semagin, DA ^{[1
]}

Dmitriev, SV ^{[1
]}

Abe, K ^{[1
]}

Shigenari, T ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Appl Phys & Chem, Chofu, Tokyo 1828585, Japan

来源：

FERROELECTRICS | 2003年 / 283卷

关键词：

lattice dynamics; incommensurate phase; quartz; phase transition;

D O I：

10.1080/00150190390204213

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We obtain a variety of modulated and homogeneous phases of quartz, stable at zero-temperature, by means of relaxational and lattice dynamics calculation. The interatomic interaction is given by the Tsuneyuki pairwise potential. The order of appearance of the phases resembles the experimentally observed order. The essential role of the potential profile is obviated. The kinetics of phase transformations in quartz is illustrated by the analysis of dispersion curves and eigenvectors, which show some peculiarities near transition points.

引用

页码：141 / 147

页数：7

共 17 条

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