The evidence of phase separation in perovskite manganites aboveTc

被引：0
|
作者：
Hong-wei Tian
Jian-Feng Zang
Tao Ding
Wei-tao Zheng
Xin Wang
机构：
[1] Jilin University,Department of Materials Science
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2004年 / 19卷
关键词：
Manganite; Manganese Oxide; Colossal Magnetoresistance; Conventional Solid State Reaction Method; Magnetic Polaron;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A series of bulk ceramic samples of La1−x CaxMn03 and Y1−x CaxMnO3 was prepared by the conventional solid state reaction method, and the samples of x = 1/3 were investigated particularly. The colossal magnetoresistance phenomenon and the properties of magnetic and transport were studied in detail by the experiments of magnetic susceptibility and low temperature resistance. Small angle X-ray scattering (SAXS) was used to investigate the charge inhomogeneities in our samples at room temperature for the first time, and phase separation and colossal magnetoresistance phenomena induced by charge inhomogeneities above Tc were discovered.
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页码：62 / 63
页数：1
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