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Precursors to Exciton Condensation in Quantum Hall Bilayers.

08:00 EDT 9th August 2019 | BioPortfolio

Summary of "Precursors to Exciton Condensation in Quantum Hall Bilayers."

Tunneling spectroscopy reveals evidence for interlayer electron-hole correlations in quantum Hall bilayer two-dimensional electron systems at layer separations near, but above, the transition to the incompressible exciton condensate at total Landau level filling ν_{T}=1. These correlations are manifested by a nonlinear suppression of the Coulomb pseudogap which inhibits low energy interlayer tunneling in weakly coupled bilayers. The pseudogap suppression is strongest at ν_{T}=1 and grows rapidly as the critical layer separation for exciton condensation is approached from above.

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This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 066802

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