Effects of electrochemical reduction on the magnetotransport properties of La0.67Ca0.33MnO3±δ nanoparticles

被引：7
|
作者：
Rivadulla, F [1 ]
Hueso, LE
Rivas, J
Blanco, MC
López-Quintela, MA
Sánchez, RD
机构：
[1] Univ Santiago, Dept Quim Fis, E-15706 Santiago, Spain
[2] Univ Santiago, Dept Fis Aplicada, E-15706 Santiago, Spain
[3] Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 203卷
关键词：
colossal magnetoresistance; nanoparticles; electrochemistry;
D O I：
10.1016/S0304-8853(99)00271-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on the effect of electrochemical reduction on the magnetic and transport properties of La0.67Ca0.33MnO3 +/- delta nanoparticles. We have observed a large displacement of the metal-insulator transition temperature (but not of the Curie temperature, T-c) in reduced samples. This behaviour is consistent with the existence of a magnetically inhomogeneous state below T-c, caused by random oxygen elimination. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：253 / 255
页数：3
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