Chern-Simons Theory for Quantum Hall Stripes

Abstract

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.

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

References in corpus (3)

• Quantum Theory of Quantum-Hall Smectics
• Field-tilt Anisotropy Energy in Quantum Hall Stripe States
• Finite Temperature Density Instability at High Landau Level Occupancy

Cited by in corpus (7)

• Effect of strain on stripe phases in the Quantum Hall regime
• Density Induced Interchange of Anisotropy Axes at Half-Filled High Landau Levels
• Heterostructure Symmetry and the Orientation of the Quantum Hall Nematic Phases
• Scaling Approach to the Phase Diagram of Quantum Hall Systems
• Impact of the modulation doping layer on the ν=5/2 anisotropy
• Orientation of hole quantum Hall nematic phases in an out-of-plane electric field
• Density-induced reorientation of the stripe at half-filled high Landau levels