期刊
SCIENCE
卷 319, 期 5869, 页码 1506-1509出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1153282
关键词
-
The metallization of hydrogen directly would require pressure in excess of 400 gigapascals ( GPa), out of the reach of present experimental techniques. The dense group IVa hydrides attract considerable attention because hydrogen in these compounds is chemically precompressed and a metallic state is expected to be achievable at experimentally accessible pressures. We report the transformation of insulating molecular silane to a metal at 50 GPa, becoming superconducting at a transition temperature of T-c = 17 kelvin at 96 and 120 GPa. The metallic phase has a hexagonal close- packed structure with a high density of atomic hydrogen, creating a three- dimensional conducting network. These experimental findings support the idea of modeling metallic hydrogen with hydrogen- rich alloy.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据