caa a22 4500 467926018 CHVBK 20180406152929.0 cr unu---uuuuu 170328e20060901xx s 000 0 eng 10.1134/S0020168506090081 doi (NATIONALLICENCE)springer-10.1134/S0020168506090081 Distribution of nitrogen-related defects in diamond single crystals grown under nonisothermal conditions [Elektronische Daten] [Yu. Babich, B. Feigelson] Experimental data are presented on the distribution of nitrogen-related defects in synthetic diamond single crystals grown by the temperature-gradient method in the Fe-Ni-C system at p = 6.0 GPa and a temperature varied stepwise in the range 1370 to 1550°C. The sectorial and zonal structures of plates cut from the crystals are investigated, and the concentration profiles of C, A, and N+ centers are obtained using Fourier transform IR spectroscopy. The zonal and sectorial variations in the concentrations of nitrogen centers and total nitrogen are analyzed. The total nitrogen concentration in the structure of diamond is shown to increase by 50-60 ppm as the temperature is lowered by 100°C. The conclusion is drawn that, at a constant composition of the system, the temperature (as well as its variation with time) plays a key role in determining the rate of nitrogen incorporation into the structure of diamond and subsequent transformations of nitrogen-related defects. Pleiades Publishing, Inc., 2006 Babich Yu Institute of Mineralogy and Petrography, Siberian Division, Russian Academy of Sciences, pr. Akademika Koptyuga 3, 630090, Novosibirsk, Russia aut Feigelson B. Geo Centers, US Naval Research Laboratory, 20375, Washington, DC, USA aut Inorganic Materials Nauka/Interperiodica 42/9(2006-09-01), 971-975 0020-1685 42:9<971 2006 42 10789 https://doi.org/10.1134/S0020168506090081 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506090081 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Babich Yu Institute of Mineralogy and Petrography, Siberian Division, Russian Academy of Sciences, pr. Akademika Koptyuga 3, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Feigelson B. Geo Centers, US Naval Research Laboratory, 20375, Washington, DC, USA aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/9(2006-09-01), 971-975 0020-1685 42:9<971 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer