Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 62, Issue 5, Pages -Publisher
IOP Publishing Ltd
DOI: 10.35848/1347-4065/accda7
Keywords
diamond; multivacancies; symmetry; density-functional-theory
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This study investigates the stability and atomic geometries of supercell diamond (216 atomic sites) through density functional theory calculations. Eight configurations of C-vacancies, ranging from mono- to octavacancies, are examined. The atomic geometries of perfect and C-multivacancies diamond are also analyzed. Results indicate that the hexavacancy configuration is the most stable, primarily due to its minimum number of dangling bonds.
This work presents a study of the configurational stabilities and atomic geometries of supercell diamond (216 atomic sites) through density functional theory calculations. We build eight C-vacancies configurations consisting of mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, and octavacancies. The atomic geometries of perfect and C-multivacancies diamond are further investigated. The formation and dissociation energies are calculated to analyze the configurational stabilities. The result shows that hexavacancy is the most stable configuration of the diamond C-multivacancies which is mainly caused by the minimum number of the dangling bond.
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