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

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

2000-06-26

arxiv.org/abs/cond-mat/0006400v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 figures submitted to Phys. Rev. Lett, revised version, new figure

Scientific paper

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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