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Highly Anisotropic Transport in the Integer Quantum Hall Effect

W. Pan·H. L. Stormer·D. C. Tsui·L. N. Pfeiffer·K. W. Baldwin·K. W. West
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Abstract

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 $ν$ = 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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W. Pan, H. L. Stormer, D. C. Tsui, L. N. Pfeiffer, K. W. Baldwin, K. W. West. 2001-01-26. Highly Anisotropic Transport in the Integer Quantum Hall Effect. https://doi.org/10.1103/physrevb.64.121305

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