THEORETICAL STUDY OF Si and N ADSORPTION ON THE Si-TERMINATED SiC(001) SURFACE

We report the results of first principles molecular dynamics simulations of the adsorption of Si and N atoms on a Si-terminated p(2×1) SiC(001) surface. In particular, we discuss different structural models for the Si-rich (3×2) surface, and the adsorption of 1/8, 1/2 and 1 monolayer nitrogen on the p(2×1) surface. Our simulations show that a SiC(001)-p(2×1) surface covered by a nitrogen monolayer is an inert substrate which inhibits growth.