Crystal Structure of Gold Hydride

Valentina F Degtyareva

Crystal Structure of Gold Hydride

Materials Science 2014-12-18 v1

Authors: Valentina F Degtyareva

Abstract

A number of transition metal hydrides with close-packed metal sublattices of fcc or hcp structures with hydrogen in octahedral interstitial positions were obtained by the high-pressure hydrogen technique described by Ponyatovskii et al, Sov. Phys. Usp. 25 (1982) 596. In this paper we consider volume increase of metals by hydrogenation and possible crystal structure of gold hydride in relation with the structure of mercury, the nearest neighbor of Au in the Periodic table. Suggested structure of AuH has a basic tetragonal body-centered cell that is very similar to the mercury structure Hg-tI2. The reasons of stability for this structure are discussed within the model of Fermi sphere - Brillouin zone interactions.

Keywords

gold hydride crystal structure high-pressure hydrogen technique tetragonal body-centered cell Fermi sphere Brillouin zone volume increase transition metal hydrides

Cite

@article{arxiv.1412.5293,
  title  = {Crystal Structure of Gold Hydride},
  author = {Valentina F Degtyareva},
  journal= {arXiv preprint arXiv:1412.5293},
  year   = {2014}
}

Comments

7 pages, 3 figures

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