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New fractional quantum Hall state in double-layer two-dimensional electron systems

Eisenstein, J. P. and Boebinger, G. S. and Pfeiffer, L. N. and West, K. W. and He, Song (1992) New fractional quantum Hall state in double-layer two-dimensional electron systems. Physical Review Letters, 68 (9). pp. 1383-1386. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:EISprl92b

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Abstract

Transport studies on bilayer two-dimensional electron systems in GaAs double quantum wells have revealed a new fractional quantum Hall state that has no known counterpart in a single-layer 2D system. At total filling fraction ν=1/2 we observe a deep minimum in the diagonal resistivity and a flat Hall plateau within 1.5% of 2h/e^2. Studies of this new state in several samples with varying densities and layer separations strongly suggest this new state arises from interlayer Coulomb correlations. The data also suggest that the ν=1 quantum Hall effect seen in these samples has a similar origin.


Item Type:Article
Additional Information:©1992 The American Physical Society Received 10 December 1991 We note that after the original observations reported here we learned of similar results of Suen et al. [14]. We thank M. Shayegan for kindly giving us a prerint prior to publication.
Record Number:CaltechAUTHORS:EISprl92b
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:EISprl92b
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.68.1383
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4032
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:25 Jul 2006
Last Modified:26 Dec 2012 08:57

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