The structure of fullerene C-60 films modified by helium dc glow discharge
plasma was studied using Raman scattering spectroscopy. The vibrational spe
ctra of the C-60 films exhibit certain features depending on the plasma tre
atment duration. The helium ion bombardment leads to the degradation of the
fullerene structure and the formation of an amorphous carbon phase. The co
efficient of carbon sputtering by helium was estimated. (C) 2001 MAIK "Nauk
a/ Interperiodica".