A Little Bit of Lithium Does a Lot for Hydrogen

Overview

Journal Proc Natl Acad Sci U S A

Specialty Science

Date 2009 Oct 7

PMID 19805046

Citations 27

Authors

Eva Zurek

Roald Hoffmann

N W Ashcroft

Artem R Oganov

Andriy O Lyakhov

Affiliations

Soon will be listed here.

Abstract

From detailed assessments of electronic structure, we find that a combination of significantly quantal elements, six of seven atoms being hydrogen, becomes a stable metal at a pressure approximately 1/4 of that required to metalize pure hydrogen itself. The system, LiH(6) (and other LiH(n)), may well have extensions beyond the constituent lithium. These hypothetical materials demonstrate that nontraditional stoichiometries can considerably expand the view of chemical combination under moderate pressure.

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