Study of Scaling in the Fractional Quantum Hall Effect

  title={Study of Scaling in the Fractional Quantum Hall Effect},
  author={X. C. Xie and D. Z. Liu and Jainendra K. Jain},
  journal={Modern Physics Letters B},
In the composite fermion model of the fractional quantum Hall effect, composite fermions experience, in addition to the usual potential disorder, also a magnetic flux disorder. Motivated by this, we investigate the localization properties of a single fermion in two dimensions, moving in the presence of both static potential and static magnetic flux disorders, but with a non-zero average magnetic field. It is found that the exponent characterizing the divergence of the localization length is not… 
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Signatures of spin in the ν=1∕3 fractional quantum Hall effect
The activation gap Δ of the fractional quantum Hall state at constant filling ν=1∕3 is measured in a wide range of perpendicular magnetic field B. Despite the full spin polarization of the