首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Structural, magnetic and transport properties of Sc-doped La0.7Sr0.3MnO3
Authors:YAN Chunhua  HUANG Yunhui  WANG Zheming  ZHANG Lei  GAO Song  LIAO Chunsheng  XU Guangxian
Abstract:The Sc-doped La0.7Sr0.3MnO3 polycrystallines were prepared by thermal decomposition of complexes of metal ions with ethylenediamine-tetraacetic acid (EDTA). The dependence of structural, magnetic and transport properties on Sc doping was investigated. Moderate Sc doping level results in a sharp drop in Curie temperature, an increase in resistance and enhancement of magnetoresistance effect. At temperatures above TMI, R(T) can be described as R(T) = R0exp(T0/T)1/4, which indicates that conduction takes place by hopping between the localized states. The experimental data reveal that the change in magnetoresistance property is related to the structure.
Keywords:scandium  perovskite  colossal magnetoresistance  thermal decomposition
本文献已被 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号