Can the collapse of the fractional-quantum-hall-effect energy gaps result in visibly observable holes?

25 February 2015 1 9K Report

Quantum Hall Effects in materials such as graphenes, graphenoids and graphitic materials

The gap in the fractional quantum Hall state is a correlation-induced gap; without correlation, the chemical potential would be inside a macroscopically-degenerate Landau level, corresponding to a compressible liquid state.

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