Crystal structure and magnetic properties of EuxSr6-xC60

被引：1

作者：

Ishii, K ^{[1
]}

Ootoshi, H ^{[1
]}

Nishi, Y ^{[1
]}

Fujiwara, A ^{[1
]}

Suematsu, H ^{[1
]}

Kubozono, Y ^{[1
]}

机构：

[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

来源：

ELECTRONIC PROPERTIES OF NOVEL MATERIALS-MOLECULAR NANOSTRUCTURES | 2000年 / 544卷

关键词：

D O I：

10.1063/1.1342461

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crystal structure and magnetic properties of EuxSr6-xC60 (x = 1, 3,6) were studied. They all have a bce structure which is an isostructure to other M6C60 (M is an alkali or alkaline earth metal). The lattice constants follow the Vegard's law, suggesting a formation of solid solution at x = 1 and 3. Magnetic measurements reveals all Eu atoms are in the divalent state with a magnetic moment of 7 mu (B) (S = 7/2), which is consistent with XANES experiments. Ferromagnetic correlation develops at low temperature in all three samples and seems to be caused the pi -f interaction through C-60 rather than the direct exchange interaction between Eu atoms.

引用

页码：29 / 32

页数：4

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