Highly Anisotropic Transport in the Integer Quantum Hall Effect

Details Highly Anisotropic Transport in the Integer Quantum Hall Effect Highly Anisotropic Transport in the Integer Quantum Hall Effect

2001-01-26

arxiv.org/abs/cond-mat/0101416v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.64.121305

At very large tilt of the magnetic (B) field with respect to the plane of a two-dimensional electron system the transport in the integer quantum Hall regime at $\nu$ = 4, 6, and 8 becomes strongly anisotropic. At these filling factors the usual {\em deep minima} in the magneto-resistance occur for the current flowing {\em perpendicular} to the in-plane B field direction but develop into {\em strong maxima} for the current flowing {\em parallel} to the in-plane B field. The origin of this anisotropy is unknown but resembles the recently observed anisotropy at half-filled Landau levels.

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