Effect of Barium Concentration on the Structural Properties and Electrical Conductivity of Pr1-xBaxMnO3 (x=0, 0.15, 0.25) Solid Solutions

被引：5

作者：

Fedorova, O. M. ^{[1
]}

Vedmid, L. B. ^{[1
,2
]}

Balakireva, V. B. ^{[3
]}

Vorotnikov, V. A. ^{[2
,3
]}

Balakirev, V. F. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met, Ural Branch, Ekaterinburg 620016, Russia

[2] Ural Fed Univ, Ekaterinburg 620002, Russia

[3] Russian Acad Sci, Inst High Temp Electrochem, Ural Branch, Ekaterinburg 620137, Russia

来源：

INORGANIC MATERIALS | 2021年 / 57卷 / 04期

关键词：

rare-earth manganites; barium; Jahn– Teller effect; electrical conductivity; OXYGEN-PRESSURE; TEMPERATURE; PR; MANGANITES; STABILITY; TRANSITIONS; BA; LN;

D O I：

10.1134/S002016852104004X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of partial barium substitution for praseodymium on temperature-induced structural transformations of Pr1 -xBaxMnO3 (x = 0, 0.15, 0.25) solid solutions has been studied by high-temperature X-ray diffraction and differential thermal analysis. The results demonstrate that the addition of barium to a concentration x = 0.15 considerably reduces the temperature of the Jahn-Teller transition. Raising the barium dopant concentration to x = 0.25 leads to disappearance of the Jahn-Teller distortion. The electrical conductivity of all the materials has been shown to exhibit semiconducting behavior. With increasing dopant concentration, their electrical conductivity rises.

引用

页码：392 / 398

页数：7

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