Volume 63, Number 3, August 2003
|Page(s)||440 - 445|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 November 2003|
Disordered quantum smectics
Laboratoire de Physique Théorique de l'École Normale Supérieure CNRS-UMR8549 24 Rue Lhomond, 75231 Paris Cedex 05, France
2 Laboratoire de Physique Théorique des Liquides CNRS-UMR7600 Université Pierre et Marie Curie - 4 Place Jussieu, 75252 Paris Cedex 05, France
Accepted: 28 May 2003
We study the impurity pinning of the Quantum Hall (QH) smectic state arising in two-dimensional electron systems in high Landau levels. We use replicas and a Gaussian Variational method to deal with the disorder. The pinned quantum smectic exhibits very anisotropic behaviour, with width correlations along the stripes manifesting a power law behavior. We calculate the dynamical conductivity along the stripe direction and find a -dependent pinning peak.
PACS: 73.43.Cd – Quantum Hall effects: Theory and modeling / 83.80.Xz – Liquid crystals: nematic, cholesteric, smectic, discotic, etc
© EDP Sciences, 2003
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