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Atomic and Electronic Properties of Small Hydrogenated Silicon Clusters: Si6H2m and Si6H+2m+1

Published online by Cambridge University Press:  15 February 2011

Takehide Miyazaki
Affiliation:
JRCAT, National Institute for Advanced Interdisciplinary Research, 1–1–4 Higashi, Tsukuba 305, Japan Electrotechnical Laboratory, 1–1–4 Umezono, Tsukuba 305, Japan.
Ivan Stich
Affiliation:
JRCAT, Angstrom Technology Partnership, 1–1–4 Higashi, Tsukuba 305, Japan
Tsuyoshi Uda
Affiliation:
JRCAT, Angstrom Technology Partnership, 1–1–4 Higashi, Tsukuba 305, Japan
Kiyoyuki Terakura
Affiliation:
JRCAT, National Institute for Advanced Interdisciplinary Research, 1–1–4 Higashi, Tsukuba 305, Japan
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Abstract

The atomic and electronic structures of Si6H2m and Si6H+2m+1 clusters have been investigated in the framework of density-functional theory. For both neutral and ionized clusters we found the structure to belong to one of four distinct structural families. A molecular-orbital picture of hydrogenation is presented. From the calculated formation energies of these clusters, we infer the relative stability of the different structural families discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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