Exciton Transport in a Bilayer Quantum Hall Superfluid

Abstract

Bilayer quantum Hall systems at ν=1 support an excitonic ground state. In addition to the usual charged quasiparticles, this system possesses a condensate degree of freedom: exciton transport. Detection of this neutral transport mode is facilitated by the use of the Corbino multiply-connected geometry in which charge transport is suppressed. We here summarize our recent experiments on Corbino devices which directly demonstrate exciton transport across the bulk of the incompressible ν=1 quantum Hall state.

5 pages, 2 figures. Contribution to the Proceedings of the 20th International Conference on High Magnetic Fields in Semiconductor Physics, Chamonix, 2012

References in corpus (4)

• Exciton Condensation and Perfect Coulomb Drag
• Critical tunneling currents in the regime of bilayer excitons
• Exciton Transport and Andreev Reflection in a Bilayer Quantum Hall System
• Exciton condensate at a total filling factor of 1 in Corbino 2D electron bilayers

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• Metal-insulator transitions in bilayer electron-hole systems in transition metal dicalcogenides
• Quantum exciton solid with embedded electron-hole solids in double-layer WSe2