Ce-substitution effects in GdBaCo2O5+δ

被引：5

作者：

Yasodha, P. ^{[1
]}

Gayathri, N. ^{[1
]}

Bharathi, A. ^{[1
]}

Premila, A. ^{[1
]}

Sundar, C. S. ^{[1
]}

Hariharan, Y. ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Div Mat Sci, Kalpakkam 603102, Tamil Nadu, India

来源：

SOLID STATE COMMUNICATIONS | 2007年 / 144卷 / 5-6期

关键词：

magnetically ordered materials; chemical synthesis; electronic transport; magnetoresistance;

D O I：

10.1016/j.ssc.2007.08.033

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Resistivity, thermopower, magnetoresi stance and magnetic susceptibility investigations of Ce-substituted GdBaCo2O5+delta have been carried out in the temperature range 4.2-300 K. Cc substitution affects the magnetism of the parent compound, decreasing its ferromagnetic and antiferromagnetic transition temperatures T-C and T-N respectively. Thermopower measurements carried out in the temperature range 77-300 K indicate an increase with Cc substitution which remains positive. The magnetoresi stance observed in the anti-ferromagnetic region seems to increase with Cc substitution. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：215 / 219

页数：5

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