Vali Dalouji - Department of Physics, Faculty of Science, Malayer University, Malayer, Iran
Reza Safdarian

In this work, the films were grown by radio frequency magnetron co–sputtering on glass substrates at room temperature. The conductivity in the temperature range T<50 K of the films was described in terms of variable-range hopping (VRH) conduction. The film deposited at 3.92 % has minimum values the average hopping distance Rhop about 3.43x10-6 (cm). It is found that the films deposited at 3.92 % has minimumvalues the topography about 3 nm.

the carbon films, the surface topography, variable-range hopping (VRH)