Инд. авторы:	Nadolinny V.A., Golushko V.V., Yuryeva O.P., Rakhmanova M.I., Shatsky V.S.
Заглавие:	A New Paramagnetic Nitrogen Center in Natural Titanium-Containing Diamonds
Библ. ссылка:	Nadolinny V.A., Golushko V.V., Yuryeva O.P., Rakhmanova M.I., Shatsky V.S. A New Paramagnetic Nitrogen Center in Natural Titanium-Containing Diamonds // Applied Magnetic Resonance. - 2010. - Vol.39. - Iss. 3. - P.303-308. - ISSN 0937-9347. - EISSN 1613-7507.
Внешние системы:	DOI: 10.1007/s00723-010-0159-3; РИНЦ: 15314922; SCOPUS: 2-s2.0-77957268369;
Реферат:	eng: A new type of nitrogen-related center in natural diamond labeled NU1 is identified as a 〈100〉 split interstitial configuration by means of electron paramagnetic resonance (EPR) and photoluminescence (PL) techniques. In PL this center is seen as an electron-vibration system with a zero-phonon line at 485 nm in the crystals containing S1/OK1 and 440.3 nm/N3 centers. NU1 EPR spectra are described by a spin-Hamiltonian with parameters: S = 1/2, I = 1 and Axx(N) = 22.5 G, Ayy(N) = 19.5 G, Azz(N) = 20.55 G, gxx = 2.0043, gyy = 2.0032, gzz = 2.0020. Directions of Azz and gzz coincide and correspond to [001]. The directions of Axx and Ayy coincide with those of gxx and gyy and correspond to [110] and [-110], respectively. Analysis of the phonon structure of the NU1 center suggested that titanium can be the second atom together with nitrogen in the structure of a split interstitial. © 2010 Springer.
Ключевые слова:	Titanium; Phonons; Paramagnetic resonance; Paramagnetic materials; Nitrogen; Crystal atomic structure; Electron spin resonance spectroscopy; Vibration systems; Spin Hamiltonian; Phonon structures; Natural diamonds; EPR spectra; Electron paramagnetic resonance; Zero-phonon line;
Издано:	2010
Физ. характеристика:	с.303-308