Electrical conductivity of SrTi1-xRuxO3

被引：18

作者：

Bianchi, RF ^{[1
]}

Corrió, JAG ^{[1
]}

Cuffini, SL ^{[1
]}

Mascarenhas, YP ^{[1
]}

Faria, RM ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis & Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.62.10785

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SiTi(1-x)RuxO3 perovskite oxide compound exhibits different physical properties depending on the x value and the temperature range. High electrical conductivity, ferromagnetism phenomena, piezoelectricity, and superconductivity are currently properties found in this perovskite family. In this paper we present a study of electronic conduction of this mixed perovskite in function of x and temperature by alternating conductivity technique. Pure SrTiO3 is an insulating material that progresses to a conductive one as x increases. The model used to explain this conductivity evolution is the random free energy barrier model developed to explain transport phenomena in disordered materials. Disorder in this perovskite is supported by diffraction studies that evidenced slight delocalizations of oxygen atoms in the lattice, added due to random substitutions of Ti4+ by Ru4+.

引用

页码：10785 / 10789

页数：5

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