Positive magnetoresistance of La0.7Sr0.3MnO3/C composites

被引：1
|
作者：
Kabirov, Yu. V. [1 ]
Gavrilyachenko, V. G. [1 ]
Bogatin, A. S. [1 ]
机构：
[1] Southern Fed Univ, Dept Phys, Rostov Na Donu 344090, Russia
来源：
FUNCTIONAL MATERIALS LETTERS | 2016年 / 9卷 / 05期
关键词：
Magneto-resistive effect; composite; spin filter; diamagnetism; ROOM-TEMPERATURE; LINEAR MAGNETORESISTANCE;
D O I：
10.1142/S1793604716500545
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The perovskite manganite La0.7Sr0.3MnO3 compound is used as a component in ceramic (1 - x)(La0.7Sr0.3MnO3)-xC composites at x = 0.15-0.85. It is found that every studied specimen is characterized by the linear dependence of the positive magnetoresistance (PMR) on the magnetic field strength at room temperature. The 0.6(La0.7Sr0.3MnO3)-0.4C composite has the largest magnetoresistance value (15%) at room temperature and intensity of magnetic field H = 15 kOe. A possible mechanism for the PMR of (1 - x)(La0.7Sr0.3MnO3)-xC composites is discussed.
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页数：3
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