Инд. авторы:	Khokhryakov A.F., Nechaev D.V., Palyanov Y.N.
Заглавие:	Unusual growth macrolayers on {100} faces of diamond crystals from magnesium-based systems
Библ. ссылка:	Khokhryakov A.F., Nechaev D.V., Palyanov Y.N. Unusual growth macrolayers on {100} faces of diamond crystals from magnesium-based systems // Journal of Crystal Growth. - 2016. - Vol.455. - P.76-82. - ISSN 0022-0248. - EISSN 1873-5002.
Внешние системы:	DOI: 10.1016/j.jcrysgro.2016.10.004; SCOPUS: 2-s2.0-84990063312; WoS: 000390972200013;
Реферат:	eng: We studied unusual growth macrolayers on the {100} faces of diamond crystals grown in Mg-C and Mg0.9Ge0.1-C systems at 7.0 GPa and in the temperature range of 1800–1900 °C. The layers were shaped as rectangles highly elongated in one of the [110] directions. The layer elongation (length to width ratio) was different, but did not exceed 23. We found that the ends of the macrolayers in most cases were composed of {111} microfacets, and their growth occurred by layers along these microfacets. Using selective etching, we found that the macrolayers were not associated with outcrops of dislocations and any planar defects on the {100} faces. It is supposed that the formation of these highly elongated layers occurs by two-dimensional nucleation that becomes possible at high carbon supersaturation under conditions of kinetically limited diamond growth in Mg-based systems. © 2016 Elsevier B.V.
Ключевые слова:	[110] direction; Two-dimensional nucleation; Temperature range; Selective etching; Length-to-width ratio; Diamond crystals; B1.Diamond; A1.Etching; Germanium; Diamonds; Carbon; B1.Diamond; A2.Single crystal growth; A1.Etching; A1.Crystal morphology; Dislocations (crystals);
Издано:	2016
Физ. характеристика:	с.76-82