Precursors to Exciton Condensation in Quantum Hall Bilayers

Eisenstein, J. P. and Pfeiffer, L. N. and West, K. W. (2019) Precursors to Exciton Condensation in Quantum Hall Bilayers. Physical Review Letters, 123 (6). Art. No. 066802. ISSN 0031-9007. doi:10.1103/PhysRevLett.123.066802. https://resolver.caltech.edu/CaltechAUTHORS:20190513-075922050

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Abstract

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.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1103/PhysRevLett.123.066802	DOI	Article
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.066802	Publisher	Article
https://arxiv.org/abs/1903.08262	arXiv	Discussion Paper

ORCID:

Author	ORCID
Eisenstein, J. P.	0000-0001-5460-0464

Additional Information:

© 2019 American Physical Society. Received 21 March 2019; published 8 August 2019. We thank G. Chaudhary, S. Das Sarma, P. A. Lee, A. H. MacDonald, and G. Refael for helpful discussions. This work was supported in part by the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center with support of the Gordon and Betty Moore Foundation through Grant No. GBMF1250. The work at Princeton University was funded by the Gordon and Betty Moore Foundation through Grant No. GBMF4420, and by the National Science Foundation MRSEC Grant No. 1420541.

Group:

Institute for Quantum Information and Matter

Funders:

Funding Agency	Grant Number
Institute for Quantum Information and Matter (IQIM)	UNSPECIFIED
Gordon and Betty Moore Foundation	GBMF1250
Gordon and Betty Moore Foundation	GBMF4420
NSF	DMR-1420541

Issue or Number:

DOI:

10.1103/PhysRevLett.123.066802

Record Number:

CaltechAUTHORS:20190513-075922050

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20190513-075922050

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No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

95417

Collection:

CaltechAUTHORS

Deposited By:

Tony Diaz

Deposited On:

13 May 2019 16:32

Last Modified:

10 May 2022 20:27

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