Abstract
Raman spectra of amorphous carbon films containing encapsulated iron (a-C:Fe) have been measured in the frequency range 200–1000 cm−1. The concentration of encapsulated iron atoms (3, 26, 38, and 54 at. %) was controlled by changing the relative areas of iron and graphite targets during the film deposition by RF magnetron sputtering and checked by Rutherford backscattering. The Raman spectra of a-C:Fe films display a series of almost equidistant bands spaced by approximately 110 cm−1. This character of the spectrum is explained in terms of the atomic vibrations in short carbon nanotubes formed during the introduction of iron into an amorphous carbon matrix.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 30, No. 23, 2004, pp. 47–53.
Original Russian Text Copyright © 2004 by Yastrebov, Ivanov-Omski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Kosobukin, Dumitrache, Morosanu.
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Yastrebov, S.G., Ivanov-Omskii, V.I., Kosobukin, V.A. et al. Raman spectra of iron-modified amorphous carbon. Tech. Phys. Lett. 30, 995–997 (2004). https://doi.org/10.1134/1.1846838
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DOI: https://doi.org/10.1134/1.1846838