Properties of Ceramic Manganite (La0.65Sr0.35)1-xMn1+xO3±Δ(x=0, 0.1, 0.2) Sintered at a Temperature of 1500°C

被引:4
作者
Akimov, G. Ya. [1 ]
Novokhatskaya, A. A. [1 ]
Zhebel', A. V. [1 ]
Revenko, Yu. F. [1 ]
机构
[1] Natl Acad Sci Ukraine, Donetsk Inst Phys & Engn, UA-83114 Donetsk, Ukraine
关键词
MAGNETORESISTANCE; PEROVSKITE;
D O I
10.1134/S1063783413120032
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
It has been shown for the first time that the structure of (La0.65Sr0.35)(1-x)Mn1+xO3 +/-Delta (x = 0, 0.1, 0.2) ceramics sintered at 1500 degrees C substantially depends on the content of superstoichiometric Mn. It has been found that the average grain size increases from 10 to > 100 mu m with increasing x from 0 to 0.2. It has been revealed that grains of the ceramic samples sintered from powders with excess Mn have an internal nanoscale layered structure. A correlation has been revealed between the size and structure of grains and and the magnetoresistive properties.
引用
收藏
页码:2479 / 2481
页数:3
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