Pair-distribution functions of correlated composite fermions

Details Pair-distribution functions of correlated composite fermions Pair-distribution functions of correlated composite fermions

2005-04-30

arxiv.org/abs/cond-mat/0505012v1

Phys.Rev. B71 (2005) 245331

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

submitted to PRB

Scientific paper

10.1103/PhysRevB.71.245331

Pair-distribution functions g(r) of Laughlin quasielectrons (composite fermions in their second Landau level) are calculated in the fractional quantum Hall states at electron filling factors nu_e=4/11 and 3/8. A shoulder in g(r) is found, supporting the idea of cluster formation. The intra- and inter-cluster contributions to g(r) are identified, largely independent of nu_e. The average cluster sizes are estimated; pairs and triplets of quasielectrons are suggested at nu_e=4/11 and 3/8, respectively.

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