SURFACE RECONSTRUCTION OF Si(001) STGDIED BY SLAB DYNAMICAL CALCULATION

The Si(001) surface is studied by the stab dynamical calculation using Keating model with the inclusion of an anisotropic pair interaction between surface atoms. T=0 phase diagram is obtained by diagonalizing the slab matrix numerically. Detailed information of the S(001) surface reconstructive structure is afforded and to be compared with experiments.