Possible Reentrance of the Fractional Quantum Hall Effect in the Lowest Landau Level

Details Possible Reentrance of the Fractional Quantum Hall Effect in the Lowest Landau Level Possible Reentrance of the Fractional Quantum Hall Effect in the Lowest Landau Level

2004-02-29

arxiv.org/abs/cond-mat/0403016v2

Phys. Rev. Lett. 93, 216802 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures; revised version accepted for publication in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.93.216802

In the framework of a recently developed model of interacting composite fermions, we calculate the energy of different solid and Laughlin-type liquid phases of spin-polarized composite fermions. The liquid phases have a lower energy than the competing solids around the electronic filling factors nu=4/11,6/17, and 4/19 and may thus be responsible for the fractional quantum Hall effect at nu=4/11. The alternation between solid and liquid phases when varying the magnetic field may lead to reentrance phenomena in analogy with the observed reentrant integral quantum Hall effect.

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