Abstract
We have studied the temperature dependence of the fractional quantum Hall effect at Landaulevel filling factors in magnetic fields up to 28 T to determine the magnitude of the associated energy gaps. The data suggest a single activation energy for . Its magnitude, much smaller than predicted by current theories, vanishes for T and saturates at T. The data also suggest a single activation energy for which is smaller than predicted.
- Received 19 July 1985
DOI:https://doi.org/10.1103/PhysRevLett.55.1606
©1985 American Physical Society