Bulk magnetic properties of La1-xCaxMnO3 (0≤x≤0.14):: Signatures of local ferromagnetic order -: art. no. 134402

被引：54

作者：

Terashita, H ^{[1
]}

Neumeier, JJ ^{[1
]}

机构：

[1] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.71.134402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the bulk magnetic properties of hole-doped La1-xCaxMnO3 (0 <= x <= 0.14) in the paramagnetic and antiferromagnetic regions; the Mn4+ concentration was determined with chemical analysis. Significant enhancement of the effective paramagnetic moment illustrates the existence of ferromagnetic clusters (polarons). The data reveal a distinct crossover in the paramagnetic region, signifying competition between ferromagnetic clusters and antiferromagnetic correlations associated with the low-temperature magnetically ordered state. The results suggest similarity in the magnetic properties at low temperatures between hole-doped LaMnO3 and electron-doped CaMnO3.

引用

页数：6

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