Direct evidence of phase coexistence in La0.5Ca0.5MnO3

被引：6
|
作者：
Loudon, JC [1 ]
Mathur, ND [1 ]
Midgley, PA [1 ]
机构：
[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
manganite; strongly correlated system; electron holography; charge order; phase separation;
D O I：
10.1016/j.jmmm.2003.11.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
There has been accumulating evidence (Mathur, Solid State Commun. 119 (2001) 271) that a charge ordered antiferromagnetic phase can coexist with a metallic ferromagnetic phase in the mixed valent manganites. We have used electron holography to show that micron sized fully ferromagnetic and non-ferromagnetic phases coexist at 90 K in La0.5Ca0.5MnO3. Dark field imaging and selected area diffraction were used in combination to show that charge order occurs in both non-ferromagnetic and ferromagnetic regions. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：13 / 14
页数：2
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