Colossal magnetoresistance in manganese oxide perovskites

被引:32
作者
Ibarra, MR [1 ]
De Teresa, JM
机构
[1] Univ Zaragoza, CSIC, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain
[2] Univ Zaragoza, CSIC, ICMA, E-50009 Zaragoza, Spain
关键词
magnetoresistance; -; colossal; perovskites; electron-phonon interaction;
D O I
10.1016/S0304-8853(97)00801-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The large magnetoresistance observed in the manganese-oxide-based perovskites is explained on the basis of a strong electron-phonon and ferromagnetic interactions which provide the mechanism for the existence of dynamic electronic phase segregation in the form of magnetic polarons. These entities are: responsible fur the magnetic and lattice effects observed in these compounds. In this experimental work we give evidence of their observation by using several techniques. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:846 / 849
页数:4
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