The theory of phase diagrams of thermodynamic systems with symmetry 3m

被引：11

作者：

Mukovnin, A. A. ^{[1
]}

Talanov, V. M. ^{[1
]}

机构：

[1] S Russia State Tech Univ, Novocherkassk 346428, Rostov Region, Russia

来源：

SOLID STATE COMMUNICATIONS | 2012年 / 152卷 / 22期

关键词：

Phase transitions; Thermodynamic properties; SPINEL SYSTEMS; TRANSITIONS; CATIONS;

D O I：

10.1016/j.ssc.2012.08.015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Within the framework of the phenomenological theory of the second-order phase transitions for the crystals undergoing structural transformations, induced by irreducible representations with symmetry group L = 3m, all possible types of phase diagrams are constructed. Conditions of realization of each type of phase diagrams are found in the approach of the thermodynamic potential of the sixth power of expansion on order parameter components. The equations for calculation of tricritical and triple point coordinates are received. In the case of spinel-type structure, qualitative agreement between the results of theoretical calculations of phase diagrams and experimental phase diagrams is observed. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2013 / 2017

页数：5

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