VERY-LOW ENERGY SURFACE OF SILICON

Citation
Sj. Clark et al., VERY-LOW ENERGY SURFACE OF SILICON, Physical review. B, Condensed matter, 50(8), 1994, pp. 5728-5731
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
50
Issue
8
Year of publication
1994
Pages
5728 - 5731
Database
ISI
SICI code
0163-1829(1994)50:8<5728:VESOS>2.0.ZU;2-3
Abstract
Depressurization of Si from its metallic beta-Sn modification results in a dense metastable form (Si-III), which is semimetallic and persist s indefinitely at ambient pressure. We have investigated possible reco nstructions of the Si-III (001) surface using ab initio pseudopotentia l calculations and find that a configuration comprised of adatoms and symmetric dimers has, to the best of our knowledge, a lower surface en ergy than any other previously reported surface of silicon.