Heat capacity and p-T phase diagrams of the ordered perovskites Pb2MgWO6 and Pb2CoWO6

被引：13

作者：

Flerov, IN ^{[1
]}

Gorev, MV

Sciau, P

机构：

[1] LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

[2] CNRS, CEMES, F-31055 Toulouse, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2000年 / 12卷 / 05期

关键词：

D O I：

10.1088/0953-8984/12/5/304

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The heat capacities of Pb2MgWO6 and Pb2CoWO6 and the effect of hydrostatic pressure on the phase transitions have been studied on powdered samples by means of an adiabatic calorimeter and DTA performed under pressure, respectively. Thermodynamic parameters, such as change of total excess entropy, latent hear and hysteresis of the phase transition temperature were determined. Entropies and p-T phase diagrams are discussed in connection with structural data.

引用

页码：559 / 567

页数：9

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