The magnetic and transport properties of Fe doped La0.5Ca0.5MnO3

被引：15
|
作者：
Chen, X
Wang, ZH
Li, RW
Shen, BG
Zhan, WS
Sun, JR
Chen, JS
Yan, CH
机构：
[1] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China
[2] Univ Sci & Technol China, Dept Phys, Anhua 230026, Peoples R China
[3] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
[4] Beijing Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 09期
关键词：
D O I：
10.1063/1.372461
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic and transport properties of Fe doped charge ordering La0.5Ca0.5MnO3 have been studied. With the increase of the Fe ion, the ground state of the sample changes from a charge ordering state (x = 0) to a spin glass state (x = 0.10). The sample with x = 0.04 displays a middle state, while a larger magnetoresistance of 10(9) at 5 K and a decrease of the critical field of charge ordering melting were found. These differences can be explained by the antiferromagnetic exchange coupling between Fe and Mn ions, the destruction of the Mn-O plane and the competition between ferromagnetic and antiferromagnetic clusters. (C) 2000 American Institute of Physics. [S0021-8979(00)41508-2].
引用
收藏
页码：5594 / 5596
页数：3
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