Quantum Hall Liquid Crystals

Details Quantum Hall Liquid Crystals Quantum Hall Liquid Crystals

2001-11-03

arxiv.org/abs/cond-mat/0111049v1

Int. J. Mod. Phys. B 16, 2924 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 4 figures. A contribution to the Proceedings of PPHMF-IV (Santa Fe, 2001)

Scientific paper

10.1142/S0217979202013225

In this report we summarize a recent progress in exploration of correlated two-dimensional electron states in partially filled high Landau levels. At a mean-field Hartree-Fock level they can be described as charge-density waves, either unidirectional (stripes) or with the symmetry of the triangular lattice (bubbles). Thermal and quantum fluctuations have a profound effect on the stripe density wave and give rise to novel phases, which are quite similar to smectic and nematic liquid crystals. We discuss the effective theories for these phases, their collective modes, and phase transitions between them.

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