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Very low energy surface of silicon

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Original languageEnglish
Pages (from-to)5728-5731
Number of pages4
JournalPhysical Review B
Issue number8
Publication statusPublished - 15 Aug 1994


Depressurization of Si from its metallic β-Sn modification results in a dense metastable form (Si-III), which is semimetallic and persists indefinitely at ambient pressure. We have investigated possible reconstructions of the Si-III (001) surface using ab initio pseudopotential calculations and find that a configuration comprised of adatoms and symmetric dimers has, to the best of our knowledge, a lower surface enrgy than any other previously reported surface of silicon. © 1994 The American Physical Society.

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