Interlayer Transport in Bilayer Quantum Hall Systems

Abstract

Bilayer quantum Hall systems have a broken symmetry ground state at filling factor $\nu =1$ which can be viewed either as an excitonic superfluid or as a pseudospin ferromagnet. We present a theory of inter-layer transport in quantum Hall bilayers that highlights remarkable similarities and critical differences between transport in Josephson junction and ferromagnetic metal spin-transfer devices. Our theory is able to explain the size of the large but finite low bias interlayer conductance and the voltage width of this collective transport anomaly.

4 pages, 2 figures

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Cited by in corpus (26)

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• Critical tunneling currents in the regime of bilayer excitons
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