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First observation of Aharonov-Bohm cages in 2-D normal metal networks

Cecile Naud, Giancarlo Faini, Dominique Mailly

cond-mat.mes-hallarXiv: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 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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