Critical tunnel currents and dissipation of Quantum-Hall bilayers in the excitonic condensate state

Y Yoon; X Huang; E Yarar; W Dietsche; L Tiemann; S Schmult; K v Klitzing

doi:10.1088/1742-6596/334/1/012024

Journal of Physics: Conference Series

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Critical tunnel currents and dissipation of Quantum-Hall bilayers in the excitonic condensate state

Y Yoon¹, X Huang¹, E Yarar¹, W Dietsche¹, L Tiemann¹, S Schmult¹ and K v Klitzing¹

Published under licence by IOP Publishing Ltd
Journal of Physics: Conference Series, Volume 334, Horiba International Conference - The 19th International Conference on the Application of High Magnetic Fields in Semiconductor Physics and Nanotechnology 1–6 August 2010, Fukuoka, Japan Citation Y Yoon et al 2011 J. Phys.: Conf. Ser. 334 012024 DOI 10.1088/1742-6596/334/1/012024

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¹ Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany

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Abstract

Transport and tunneling is studied in the regime of the excitonic condensate at total filling factor one using the counterflow geometry. At small currents the coupling between the layers is large making the two layers virtually electrically inseparable. Above a critical current the tunneling becomes negligible. An onset of dissipation in the longitudinal transport is observed in the same current range.

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Critical tunnel currents and dissipation of Quantum-Hall bilayers in the excitonic condensate state

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