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Edge of a Half-Filled Landau Level

S. -R. Eric Yang·J. H. Han
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Abstract

We have investigated the electron occupation number of the edge of a quantum Hall (QH) droplet at $ν=1/2$ using exact diagonalization technique and composite fermion trial wavefunction. We find that the electron occupation numbers near the edge obey a scaling behavior. The scaling result indicates the existence of a well-defined edge corresponding to the radius of a compact droplet of uniform filling factor 1/2. We find that the occupation number beyond this edge point is substantial, which is qualitatively different from the case of odd-denominator QH states. We relate these features to the different ways in which composite fermions occupy Landau levels for odd and even denominator states.

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S. -R. Eric Yang, J. H. Han. 1998-03-26. Edge of a Half-Filled Landau Level. https://doi.org/10.1103/physrevb.57.r12681

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