Chern-Simons Theory for Quantum Hall Stripes

Details Chern-Simons Theory for Quantum Hall Stripes Chern-Simons Theory for Quantum Hall Stripes

2000-03-12

arxiv.org/abs/cond-mat/0003194v2

Int. J. Mod. Phys. B 15, 1905 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 4 figures, uses EuroPhys.sty and EuroMacro.tex (included), improved calculation of anisotropic pinning

Scientific paper

10.1142/S0217979201004988

We develop a Chern-Simons theory to describe a two-dimensional electron gas in intermediate magnetic fields. Within this approach, inhomogeneous states emerge in analogy to the intermediate state of a superconductor. At half filling of the highest Landau level we find unidirectional charge-density-wave (CDW) solutions. With a semiclassical calculation we give an intuitive explanation of the change of CDW orientation in the presence of an in-plane magnetic field. An anisotropy in the electron band mass is suggested as a possible source of the reproducible orientation of the CDW.

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