Инд. авторы:	Nadolinny V.A., Palyanov Y.N., Kupriyanov I.N., Newton M.J., Kryukov E., Sokol A.G.
Заглавие:	A New EPR Data on the MA1 and NIRIM8 (NP1) Phosphorus-Related Centers in Synthetic 1b Diamonds
Библ. ссылка:	Nadolinny V.A., Palyanov Y.N., Kupriyanov I.N., Newton M.J., Kryukov E., Sokol A.G. A New EPR Data on the MA1 and NIRIM8 (NP1) Phosphorus-Related Centers in Synthetic 1b Diamonds // Applied Magnetic Resonance. - 2012. - Vol.42. - Iss. 2. - P.179-186. - ISSN 0937-9347. - EISSN 1613-7507.
Внешние системы:	DOI: 10.1007/s00723-011-0259-8; SCOPUS: 2-s2.0-84857237433;
Реферат:	eng: Microdiamonds grown under high-pressure and high-temperature conditions from a P-C medium at different temperatures have been studied by electron paramagnetic resonance (EPR). Two paramagnetic centers P1 and MA1 were observed in microdiamonds grown at 1,873 K. Analysis of weak lines around these centers suggests that they may be due to 13C hyperfine structure (HFS) of the MA1 center. The calculated s/p hybridization parameter for this carbon atom (C 1) was similar to that for the undistorted lattice. At a growth temperature of 1,973 K, in addition to MA1 and P1, a new center, labeled NP1, with HFS from nitrogen and phosphorus atoms and with EPR parameters similar to NIRIM 8 was identified. The NP1 (NIRIM8) centers have an electron spin S = 1/2. We propose that nitrogen-phosphorus defects are created through subsequent migration of nitrogen atoms towards phosphorus atoms upon increasing of the growth. © 2011 Springer-Verlag.
Ключевые слова:	Phosphorus; Paramagnetism; Nitrogen; Magnetic resonance; Magnetic moments; Weak lines; Undistorted lattice; Phosphorus atom; Synthetic diamonds; Nitrogen atom; Microdiamonds; Hyperfine structure; High-pressure and high-temperature; EPR parameters; Electron spins; Carbon atoms; Paramagnetic centers;
Издано:	2012
Физ. характеристика:	с.179-186