Magnetic properties and electron spin resonance of charge ordering manganitey Y0.5Ca0.5MnO3

被引：37

作者：

Tian, HW ^{[1
]}

Zheng, WT ^{[1
]}

Zhao, ZD ^{[1
]}

Ding, T ^{[1
]}

Yu, SS ^{[1
]}

Zheng, B ^{[1
]}

Li, XT ^{[1
]}

Meng, FL ^{[1
]}

Jiang, Q ^{[1
]}

机构：

[1] Jilin Univ, Dept Mat Sci, Key Lab Automobile Mat, MOE, Changchun 130012, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 401卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.11.129

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the magnetization and electron spin resonance study on charge-ordering (CO) manganite Y0.5Ca0.5MnO3(YCMO) across the charge-ordering transition temperature T-CO down to the antiferromagnetic ordering transition temperature T-N. The transition temperatures of T-CO and T-N are observed at 275 and 125 K, respectively. The observed large decrease in the linewidth from T-N to T-CO can be explained in terms of motional narrowing caused by the hopping of the Jahn-Teller (JT) polarons. Below T-CO the g-value is almost constant, suggesting the weakening of orbital order in the compound of YCMO. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：585 / 589

页数：5

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