First observation of Aharonov-Bohm cages in 2-D normal metal networks
arXiv:cond-mat/0006400
Abstract
We report on magnetoresistance transport measurements performed on a bipartite tiling of rhombus in the GaAs/GaAlAs system. We observe for the first time large amplitude oscillations in this network as compared to the one measured in square lattices of similar size. These oscillations are the signature of a recently predicted localization phenomenon induced by Aharonov-Bohm interferences in this peculiar network.
5 figures submitted to Phys. Rev. Lett, revised version, new figure