Max-Planck-Institut fur Festkorperforschung, Stuttgart, 70569, Germany

Transport properties in one- and in four-antidot systems were investigated by using the lattice model and Landauer-Buttiker formula (1988). The systems are assumed to be connected with two ideal wires. For one antidot system, one min. in conductance was found when the magnetic field was .apprx.0.43 T. Oscillation with a period in the magnetic field superimposed on this min. was obsd. For the four-antidot system, there were two min. in the conductance. Small oscillations superimposed on these two min. were also obsd. These small oscillations are believed to be Aharonov-Bohm oscillations due to orbit localization.
 

in: Proceedings of the 23rd International Conference on the Physics of Semiconductors, vol. 2. Eds: Scheffler, M.; Zimmermann, R.. Singapore: World Scientific, 1996. p. 1497-1500}, year = {1996.