Ruthenium doping of the layered charge ordered manganites, La0.5Sr1.5MnO4 and LaSr2Mn2O7

被引：9
|
作者：
Ganguly, R [1 ]
Martin, C [1 ]
Maignan, A [1 ]
Hervieu, M [1 ]
Raveau, B [1 ]
机构：
[1] Inst Sci Mat & Rayonnement, Lab CRISMAT, F-14050 Caen, France
来源：
SOLID STATE COMMUNICATIONS | 2001年 / 120卷 / 9-10期
关键词：
magnetically ordered materials; chemical synthesis; electronic transport; exchange and superexchange;
D O I：
10.1016/S0038-1098(01)00401-X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The effects of substitution of Ru for Mn in the layered charge ordered manganites, La0.5Sr1.5MnO4 and LaSr2Mn2O4 have been studied by X-ray diffraction, magnetization and resistivity measurement techniques. The solubility of Ru in both La0.5Sr1.5MnO4 and LaSr2Mn2O7 is much lower than that observed for perovskite manganites. For both the charge ordered parent compounds, the substitution of Ru destroys charge ordering (CO), induces ferromagnetic moments and improves the magneto-resistive properties. The possible origins of these effects are discussed. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：363 / 368
页数：6
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