Surface stabilization phenomena on flame-deposited diamond single crystals
نویسنده
چکیده
The acetylene-oxygen combustion flame technique was applied to the homoepitaxial deposition of diamond single crystals on cylindrically shaped {111}, {001} and {110} type IIa natural diamond substrates. After deposition the specimen revealed surface stabilization phenomena like flat facets and curved bands for orientations corresponding to Miller indices {hhk}h < k in the (110) zones. The surfaces of all other orientations have a rough appearance, because they are stabilized by the development of microfacets which also have orientations close to {hhk} h < k. The observed phenomena can be explained by a broken bond analysis of the diamond crystal with additional considerations about surface reconstruction by dimer formation.
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