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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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.
|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. . We thank M. Shayegan for kindly giving us a prerint prior to publication.|
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|Deposited On:||25 Jul 2006|
|Last Modified:||26 Dec 2012 08:57|
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