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

页码：13 / 14

页数：2

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