Isotope shifts of nitrogen-related localised mode vibrations in diamond
- 30 October 1987
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 20 (30) , L797-L801
- https://doi.org/10.1088/0022-3719/20/30/001
Abstract
Cathodoluminescence studies of the 3.188 eV vibronic band in 12C and 13C synthetic diamonds show that the sharp peaks at around 3.0 eV are local-mode replicas of the zero-phonon line. Accurate measurement of the isotope shifts shows that one of these modes involves the vibration of a single nitrogen atom. This interpretation is confirmed by measurements on 15N-doped synthetic diamond. A vibrational absorption peak at 1856 cm-1, superimposed on the tail of the two-phonon lattice band, is shown, from vacancy-enhanced aggregation studies on 15N-doped diamond, to be a di-nitrogen centre.Keywords
This publication has 3 references indexed in Scilit:
- Nitrogen isotope effects in synthetic diamondsJournal of Physics D: Applied Physics, 1987
- The 1450 cm-1infrared absorption in annealed, electron-irradiated type I diamondsJournal of Physics C: Solid State Physics, 1982
- Vacancy enhanced aggregation of nitrogen in diamondJournal of Physics C: Solid State Physics, 1980