Supersymmetric Intersecting D6-BRANES and Chiral Models on the T6/(Z4×Z2) Orbifold

Intersecting D-brane worlds provide phenomenologically appealing constructions of four dimensional low energy string vacua. In this talk, a Z₄×Z₂ orbifold background is taken into account. It is possible to obtain supersymmetric and stable chiral models. In particular, a three generation model with Pati-Salam gauge group and no exotic chiral matter is presented.