Transport properties of polycrystalline La2/3Ca1/3Mn1-xCuxO3 prepared by sol-gel

被引：0
作者：
Yang, YP
Yuan, SL
Xia, ZC
Zhang, GH
Zhang, LJ
机构：
[1] Wuhan Univ Technol, Dept Phys, Wuhan 430070, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan 430074, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2002年 / 17卷 / 04期
关键词：
Cu doping; sol-gel; intergrain magnetoresistance;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of Cu dopant (x) and sintering temperature (T-s) on the transport properties of La(2/3)Ca(1/3)Ma(1-x)Cu(x)O(3) series samples prepared by Sol-Gel technique was investigated. X-ray diffraction patterns show that. all the samples with different Cu dopant and sintering temperatures (T-s) are of single phase without obvious lattice distortion. Experimental results indicate that the insulator-metal transtition temperature is directly related to the sintering temperature and Cu dopant x. It is interesting to observe that a proper amount of Cu dopant can substantially improve magnetoresistance effects.
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页码：47 / 50
页数：4
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