I. Kiflawi et al., THE CREATION OF THE 3107 CM(-1) HYDROGEN ABSORPTION PEAK IN SYNTHETICDIAMOND SINGLE-CRYSTALS, DIAMOND AND RELATED MATERIALS, 5(12), 1996, pp. 1516-1518
The 3107 cm(-1) hydrogen related local mode was produced in HPHT grown
diamonds after annealing at temperatures above 2100 degrees C. A corr
elation was found between the intensity of the peak and the concentrat
ion of nitrogen at different locations of the same specimen. The peak
position did not shift in N-15 doped samples.