Spin states of Mn and Co in LaMn0.5Co0.5O3

被引：106

作者：

Joy, PA ^{[1
]}

Khollam, YB ^{[1
]}

Date, SK ^{[1
]}

机构：

[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.62.8608

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-temperature susceptibility measurements have indicated that the spin states of Mn and Co are different in the two different phases of the ferromagnetic oxide LaMn0.5Co0.5O3. Mn and Co ions are present in their trivalent state as high-spin Mn3+ and low-spin Co3+ in the high-T-c (T(c)approximate to 225 K) phase of the compound whereas in the low-T-c (T(c)approximate to 150 K) phase, they are present as Mn4+ and Co2+. Evidently, the ferromagnetic superexchange interactions are of different origins in the two different phases of LaMn0.5Co0.5O3.

引用

页码：8608 / 8610

页数：3

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