Abstract
High purity polycrystalline samples of C60 and C70 were obtained and studied by the electron energy-loss spectroscopy in the reflection mode. The spectra were used for determination of the loss functions of fullerenes. Loss functions of the fullerenes were compared with those of graphite. It was established that the relative intensities of the peaks corresponding to (σ+π)- and π-plasmons depended on the primary electron energy, while the (σ+π)-plasmon energies did not depend on the primary electron energy and were equal to 25.0 eV for C60 and 24.8 eV for C70. The conclusion on the space localization for plasma occilations in fullerenes was made on the base of the study of the energy dependent loss functions.
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Shul'ga, Y.M., Rubtsov, V.I. & Lobach, A.S. Reflection electron energy-loss spectra of the fullerenes C60 and C70 . Z. Physik B - Condensed Matter 93, 327–331 (1994). https://doi.org/10.1007/BF01312703
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DOI: https://doi.org/10.1007/BF01312703