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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tomilin F. N., Pomogaev V. A., Melchakova Y. A., Artyushenko P. V., Shubin A. A., Volodin A. M., Zilberberg I. L., Avramov P. V.
Заглавие : Structure and properties of exotic nano- and mesodiamonds with pentagonal symmetry
Место публикации : Russ. Phys. J. - 2022. - Vol. 64, Is. 11. - P.2046-2051. - ISSN 10648887 (ISSN), DOI 10.1007/s11182-022-02553-0
Примечания : Cited References: 16. - These results were obtained within the framework of the State Assignment of the Russian Ministry of Education and Science (No. 0721-2020-0033)
Аннотация: A comprehensive critical survey of structures of exotic nano-, meso- and microdiamonds with dodecahedral and icosahedral symmetry (N/MDPS) is presented. Due to their high dodecahedral or icosahedral symmetry, the unique complex atomic and electronic structure of N/MDPS leads to transport and mechanical properties very promising for photonic, quantum, and nanomechanical applications. To explain the nature of diamonds, theoretical models have been proposed based on the formation of twinned structures consisting of either 5 or 20 symmetrically equivalent tetrahedral and prismatic fragments of the face-centered cubic lattice with the formation of star-shaped or icosahedral clusters, respectively. It has been shown that these twinned nano- and mesodiamonds have limited dimensions due to accumulation of uncompensated structural stresses arising from the deviation of the angles between diamond 111 facets from perfect 72° in tetrahedral fragments of the face-centered cubic lattice to 70.5° between five symmetrically equivalent twinned fragments.
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