Инд. авторы:	Babich Y.V., Feigelson B.N., Chepurov A.I.
Заглавие:	Manifestation of nitrogen interstitials in synthetic diamonds obtained using a temperature gradient technique (Fe–Ni–C system)
Библ. ссылка:	Babich Y.V., Feigelson B.N., Chepurov A.I. Manifestation of nitrogen interstitials in synthetic diamonds obtained using a temperature gradient technique (Fe–Ni–C system) // Geochemistry International. - 2016. - Vol.54. - Iss. 10. - P.922-927. - ISSN 0016-7029. - EISSN 1531-8397.
Идентиф-ры:	DOI: 10.1134/S0016702916100025; SCOPUS: 2-s2.0-84990925087; WoS: 000385196900010;
Реферат:	eng: The IR-peak 1450 cm–1 (H1a-center) associated with nitrogen interstitials have been studied in nitrogen-bearing diamonds synthesized at high P-T parameters in the Fe–Ni–C system. FTIR study shows that manifestation of this nitrogen form is restricted to the regions of active transformation of C-defects into A-defects, which confirms the connection of its formation with C => A aggregation process. An examination of the dependence of the 1450 cm–1 peak on the degree of nitrogen aggregation indicates that H1a-centers are not only formed during C/A aggregation but also disappear simultaneously with the end of C => A transformation. Established facts suggest direct involving of nitrogen as interstitials in the C => A aggregation and serve as strong experimental argument in support of the “interstitial” mechanism of nitrogen migration during aggregation in diamonds containing transition metals. © 2016, Pleiades Publishing, Ltd.
Ключевые слова:	Temperature gradient technique; T parameter; Nitrogen migration; Nitrogen form; Nitrogen aggregations; Interstitials; Established facts; Aggregation process; Transition metals; Thermal gradients; Temperature; Nitrogen; Nickel; Impurities; Diamonds; Agglomeration; temperature gradient technique; synthetic diamond; nitrogen; impurities; Synthetic diamonds;
Издано:	2016
Физ. хар-ка:	с.922-927