Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2000-07-27
Europhys. Lett. 55, 260 (2001)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages latex with 1 EPS figure
Scientific paper
10.1209/epl/i2001-00408-4
We study the effect of disorder on quantum Hall smectics within the framework of an elastic theory. Based on a renormalization group calculation, we derive detailed results for the degrees of translational and orientational order of the stripe pattern at zero temperature and carefully map out the disorder and length-scale regimes in which the system effectively exhibits smectic, nematic, or isotropic behavior. We show that disorder always leads to a finite density of free dislocations and estimate the scale on which they begin to appear.
Scheidl Stefan
von Oppen Felix
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