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Magnetic behavior in the La0.7Pb0.3Mn1-xCoxO3 perovskite compounds

被引：9
|
作者：
Shi, JB [1 ]
Fan, YY
Tai, MF
Chen, HZ
Young, SL
机构：
[1] Feng Chia Univ, Dept Elect Engn, Taichung 407, Taiwan
[2] Natl Chung Cheng Univ, Dept Phys, Chiayi 621, Taiwan
[3] Hsiuping Inst Technol, Dept Elect Engn, Taichung 412, Taiwan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 239卷 / 1-3期
关键词：
DC magnetization; AC susceptibility; colossal magnetoresistance;
D O I：
10.1016/S0304-8853(01)00512-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Compositions with the rhombohedral structure have been successfully synthesized in the La0.7Pb0.3Mn1-xCoNO3 system. DC magnetization and AC susceptibility measurements were carried out For the entire series. The Curie temperature T-c decreases with increasing x from 306 K (x = 0.0) down to 60 K (x = 0,9). The antiferromagnetic state was found near the Co-rich side (x = 1.0). Co doping tends to destroy the double exchange in Mn4+-O-Mn3+ and broadens the coexistence re-ion of the cluster-glass and ferromagnetic states. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：8 / 10
页数：3
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