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  4. Formation of icosahedron twins during initial stages of heteroepitaxial diamond nucleation and growth
 
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2019
Journal Article
Titel

Formation of icosahedron twins during initial stages of heteroepitaxial diamond nucleation and growth

Abstract
Heteroepitaxy of diamond on single-crystalline iridium via bias enhanced nucleation remains the most successful, and simultaneously, the most unexplored crystallization process developed for fabrication of wafer-scale thin films and free-standing substrates. Unique conditions provided by nucleation and growth from ""soft-implanted"" carbon clusters cause the formation of three-dimensional crystallographic irregularities, which take the form of various polyhedrons, also known as multiply twinned particles (MTPs). It is shown here that the diamond MTPs retain a thermodynamically stable structure on the micrometer-scale and can be controllably reproduced using specific nucleation and growth conditions. Particular crystallization mechanisms leading to the formation of icosahedron twins and completed icosahedrons in thin diamond epilayers are discussed, and the experimental findings are supported by a phenomenological model based on thermodynamic and kinetic concepts.
Author(s)
Lebedev, Vadim
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Yoshikawa, Taro
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Giese, Christian
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Kirste, Lutz
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Zukauskaite, Agne
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Graff, Andreas
Fraunhofer-Institut für Mikrostruktur von Werkstoffen und Systemen IMWS
Meyer, Frank
Fraunhofer-Institut für Werkstoffmechanik IWM
Burmeister, Frank
Fraunhofer-Institut für Werkstoffmechanik IWM
Ambacher, Oliver
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Zeitschrift
Journal of applied physics
Thumbnail Image
DOI
10.1063/1.5085184
Language
English
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Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Fraunhofer-Institut für Mikrostruktur von Werkstoffen und Systemen IMWS
Fraunhofer-Institut für Werkstoffmechanik IWM
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