Charge Density Wave in Two-Dimensional Electron Liquid in Weak Magnetic Field

Details Charge Density Wave in Two-Dimensional Electron Liquid in Weak Magnetic Field Charge Density Wave in Two-Dimensional Electron Liquid in Weak Magnetic Field

1995-08-05

arxiv.org/abs/cond-mat/9508017v3

Phys. Rev. Lett. 76, 499 (1996).

Physics

Condensed Matter

Several errors corrected

Scientific paper

10.1103/PhysRevLett.76.499

We study the ground state of a clean two-dimensional electron liquid in a weak magnetic field where $N \gg 1$ lower Landau levels are completely filled and the upper level is partially filled. It is shown that the electrons at the upper Landau level form domains with filling factor equal to one and zero. The domains alternate with a spatial period of order of the cyclotron radius, which is much larger than the interparticle distance at the upper Landau level. The one-particle density of states, which can be probed by tunneling experiments, is shown to have a pseudogap linearly dependent on the magnetic field in the limit of large $N$.

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