AAS OSCILLATIONS IN ANTIDOT LATTICES

Quantum-interference effects on the conductance of antidot lattices ar e studied with the use of a recursive Green's function technique. It i s shown that Aharonov-Bohm (AB) type oscillations varying sensitively with the antidot diameter and period are dominant in the ideal case. T he AB oscillations disappear and an AAS oscillation manifests itself i n the presence of fluctuations in the size or position of the antidots .