B-11 NUCLEAR-QUADRUPOLE INTERACTION IN METAL HEXABORIDES (MB6)

被引：9

作者：

AONO, M

KAWAI, S

机构：

[1] National Institute for Research in Inorganic Materials, Niihari-gun, Ibaraki, 300-31, Namiki 1-1, Sakura-mura

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1979年 / 40卷 / 11期

关键词：

D O I：

10.1016/0022-3697(79)90033-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The magnitude of the electric field gradient at the boron nucleus, |eq|, in divalent- and trivalent-metal hexaborides (MB6) as well as in mixed-valent SmB6 has been measured by the nuclear magnetic resonance method. In each group of divalent- and trivalent-metal hexaborides, |eq| decreases remarkably with increasing lattice parameter. At a given lattice parameter, |eq| for the trivalent-metal hexaborides is smaller than that for the divalent-metal hexaborides. The value of |eq| for SmB6 is situated between those for the divalent- and trivalentmetal hexaborides. On the basis of these results, the electronic structure of the hexaborides is discussed. © 1979.

引用

页码：797 / 802

页数：6

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