TIGHT-BINDING CALCULATION FOR GaAs (110) SURFACE
GaAs(110)面的紧束缚计算

In the present work, the tight-binding calculation for the rotational relaxed GaAs (110) surface is studied. In order to simulate the semi-infinite crystal, a saturating slab model is adopted with the last layer of which being saturated by some quasi As and Ga atoms, so that the slab model can be considered as having one surface only. The LDOS thus obtained agrees well with that given by the conventional slab model.