Abstract
We report the observation of a new fractional quantum Hall state in the second Landau level of a two-dimensional electron gas at the Landau level filling factor nu = 2 + 6/13. We find that the model of noninteracting composite fermions can explain the magnitude of gaps of the prominent 2 + 1/3 and 2 + 2/3 states. The same model fails, however, to account for the gaps of the 2 + 2/5 and the newly observed 2 + 6/13 states suggesting that these two states are of exotic origin.
Published in:
Physical Review Letters 105,24 (2010)
Link to original published article:
http://dx.doi.org/10.1103/PhysRevLett.105.246808
Date of Version
December 2010
Recommended Citation
Kumar, A.; Csathy, G. A.; Manfra, M. J.; Pfeiffer, L. N.; and West, K. W., "Nonconventional Odd-Denominator Fractional Quantum Hall States in the Second Landau
Level" (2010). Department of Physics and Astronomy Faculty Publications. Paper 1276.
https://docs.lib.purdue.edu/physics_articles/1276