METALLIZATION OF SOLID HYDROGEN AT MEGABAR PRESSURES - A 1ST-PRINCIPLES QUASI-PARTICLE STUDY

被引：83

作者：

CHACHAM, H ^{[1
]}

LOUIE, SG ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.66.64

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quasiparticle calculations have been performed for the band gap of solid molecular hydrogen in the hcp structure. The calculations predict that the orientationally ordered phase undergoes metallization due to an indirect band overlap at the volume V = 2.50 cm3/mol, and the orientationally disordered phase at V = 1.89 cm3/mol, which correspond to metallization pressures of 151 and 300 GPa, respectively. A quantitative relation between the degree of orientational order and the metallization volume is obtained.

引用

页码：64 / 67

页数：4

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