SUPERCONDUCTIVITY IN THE SILICON CLATHRATE COMPOUND (NA,BA)(X)SI-46

被引：362

作者：

KAWAJI, H

HORIE, H

YAMANAKA, S

ISHIKAWA, M

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Hiroshima University

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.74.1427

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new silicon clathrate compound containing barium, (Na,Ba) xSi46, becomes a type-II superconductor with a critical temperature (Tc) of about 4 K. In the compound, the silicon atoms are bonded tetrahedrally with about the same bond distances as in ordinary cubic diamond Si, but form 12- and 14-hedral cages which are linked by shared faces. The metal atoms are located in the center of the polyhedra. This is the first superconductor consisting of a Si sp3 covalent network. © 1995 The American Physical Society.

引用

页码：1427 / 1429

页数：3

共 18 条

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