Heat capacity study of relaxor PbMg1/3Nb2/3O3 in a wide temperature range

被引：27

作者：

Gorev, MV ^{[1
]}

Flerov, IN

Bondarev, VS

Sciau, P

机构：

[1] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia

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

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2003年 / 96卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1567427

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Heat capacity of the PbMg1/3Nb2/3O3 compound is measured using the methods of adiabatic and differential scanning calorimetry in the temperature range 80-750 K. Two blurred anomalies on the C-p(T) dependence are observed in wide temperature intervals of 200- 400 K and 500-700 K. The results of studies are discussed together with data on the structure and phonon spectrum in the framework of spherical random bond-random field model. (C) 2003 MAIK "Nauka/Interperiodica".

引用

页码：531 / 537

页数：7

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