Surface properties of diamond-like amorphous carbon
Journal
Journal of Non-Crystalline Solids
Date Issued
May 1998
Author(s)
DOI
0.1016/S0022-3093(98)00143-4
Abstract
Monte Carlo simulations show that the surface in tetrahedral amorphous carbon networks reconstructs in a graphite-like manner. The top surface layer is found to be largely composed of distorted sixfold-ring patterns of sp2 sites. Stresses at the surface are tensile, while they vary with depth in a complex oscillatory way. Defect formation energies close to the surface are much less than in the crystal.