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Charge Density Wave Ordering in Half Filled High Landau Levels

E. H. Rezayi·F. D. M. Haldane·Kun Yang
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Abstract

We report on numerical studies of two-dimensional electron systems in the presence of a perpendicular magnetic field, with a high Landau level index (N > 1) half filled by electrons. Strong and sharp peaks are found in the wave vector dependence of both static density susceptibility and equal-time density-density correlation function, in finite-size systems with up to twelve electrons. Qualitatively different from partially filled lowest (N=0) Landau level, these results are suggestive of a tendency toward charge density wave ordering in these systems. The ordering wave vector is found to decrease with increasing N.

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E. H. Rezayi, F. D. M. Haldane, Kun Yang. 2000-02-07. Charge Density Wave Ordering in Half Filled High Landau Levels. https://doi.org/10.1103/physrevlett.83.1219

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