Evidence for charge-flux duality near the quantum Hall liquid to insulator transition

Details Evidence for charge-flux duality near the quantum Hall liquid to insulator transition Evidence for charge-flux duality near the quantum Hall liquid to insulator transition

1995-10-19

arxiv.org/abs/cond-mat/9510113v2

Physics

Condensed Matter

10 pages, Revtex 3.0, 4 uuencoded postscript figures

Scientific paper

10.1126/science.274.5287.589

We examine the longitudinal, non-linear, current-voltage characteristics near the quantum Hall liquid to insulator transition and show that a simple mapping exists between the characteristics on the quantum Hall side and those on the insulating side of the transition. More precisely, at filling factors related by the law of corresponding states the current and voltage simply trade places. We interpret these observations as evidence for the existence, in the composite boson description, of charge-flux duality near disorder dominated transitions in quantum Hall systems. (Appearances notwithstanding, this is an experimental paper.)

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