Aharonov-Bohm cages in 2D normal metal networks.
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 h/e 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.
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L2M-CNRS, 196 Avenue H. Ravéra, BP107, 92225 Bagneux Cedex, France.
Faini
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Mailly
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