ELECTRICAL-PROPERTIES AND CATIONIC DISTRIBUTION IN CUBIC NICKEL MANGANITE SPINELS NIXMN3-XO4, 0.57-LESS-THAN-X-LESS-THAN-1

被引：38

作者：

GILLOT, B ^{[1
]}

KHARROUBI, M ^{[1
]}

METZ, R ^{[1
]}

LEGROS, R ^{[1
]}

ROUSSET, A ^{[1
]}

机构：

[1] CNRS,CHIM MAT INORGAN LAB,F-31055 TOULOUSE,FRANCE

来源：

SOLID STATE IONICS | 1991年 / 44卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(91)90018-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrical conductivity and thermoelectric power of single-phase cubic nickel manganite spinels Ni(x)Mn(3-x)O4 with 0.57 < x < 1 have been measured in the temperature range 300-800 K on samples which have been quenched or slow-cooled from high temperature. The change in the activation energy, the maximum observed for the conductivity and the increase of the thermoelectric power at about 650 K for composition x > 0.80 are indicative of an exchange of cations in the spinel lattice leading to a formula of type: [GRAPHICS] Over the composition range 0.57 < x < 0.80, the results show no evidence of cation exchange.

引用

页码：275 / 280

页数：6

共 32 条

[1]

AZAROFF LV, 1959, Z KRISTALLOGR, V112, P33

[2] CORRELATION OF PHYSICAL-PROPERTIES OF NI-XCU-1-XMN-2O-4 SYSTEM [J].