The electron paramagnetic resonance in copper-modified amorphous carbon
T. K. ZvonarevaIoffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021 RussiaV. I. Ivanov-OmskiĭIoffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021 RussiaB. P. PopovIoffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021 RussiaK. F. Shtel’makhIoffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg
ABI
Annotatsiya
Room-temperature EPR spectra of copper-modified α-C:H films exhibit signals due to the isolated paramagnetic copper centers and dangling carbon bonds. An analysis of variation of the EPR signal intensity depending of the annealing temperature (T a≤300°C) and relaxation of the EPR and IR absorption signals upon annealing indicates that the annealing-induced modification of the α-C:H films involves hydrogen and oxygen impurities in the amorphous carbon matrix.
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