Decomposition of C-60 molecules on Si(100)(2 x 1) surface

We have investigated the decomposition of C-60 molecules with low and high coverages on Si(100)(2 x 1) surface at elevated temperatures. We also inves tigated the decomposition of an isolated C-60 molecule. We employed molecul ar-dynamics simulation using a model potential. It has been found that C-60 decomposes on Si(100) surface after 1000 K in the case of low coverage (0. 11), however in high coverage case (0.67), C-60 molecules decompose after 9 00 It. On the other hand, isolated C-60 molecule decomposes after 7500 K, i nterestingly it shows a phase change from 3D to 2D at higher temperatures.