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Coulomb barrier to tunneling between parallel two-dimensional electron systems

Eisenstein, J. P. and Pfeiffer, L. N. and West, K. W. (1992) Coulomb barrier to tunneling between parallel two-dimensional electron systems. Physical Review Letters, 69 (26). pp. 3804-3807. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:EISprl92c

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Abstract

Tunneling between parallel two-dimensional electron gases in double quantum wells is examined at both zero and high perpendicular magnetic field. The measured I-V characteristics show the magnetic field qualitatively alters the tunneling density of states, creating both a wide gap at the Fermi level and a much broader density of final states than is present at zero field. We suggest the origin of these effects lies in the strong Coulomb correlations characteristic of Landau quantized two-dimensional systems.


Item Type:Article
Additional Information:©1992 The American Physical Society Received 23 October 1992 It is a pleasure to thank B. I. Halperin, S. He, R. B. Laughlin, P. B. Littlewood, A. H. MacDonald, D. Monroe, A. Pasquallero, P. M. Platzman, C. M. Varma, and especially M. S. Hybersten for many useful discussions.
Record Number:CaltechAUTHORS:EISprl92c
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:EISprl92c
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.69.3804
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4034
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:25 Jul 2006
Last Modified:26 Dec 2012 08:57

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