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The Onset of Anisotropic Transport of Two-Dimensional Electrons in High Landau Levels: An Isotropic-to-Nematic Liquid Crystal Phase Transition?

K. B. Cooper·M. P. Lilly·J. P. Eisenstein·L. N. Pfeiffer·K. W. West
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Abstract

The recently discovered anisotropy of the longitudinal resistance of two-dimensional electrons near half filling of high Landau levels is found to persist to much higher temperatures T when a large in-plane magnetic field B|| is applied. Under these conditions we find that the longitudinal resistivity scales quasi-linearly with B||/T. These observations support the notion that the onset of anisotropy at B||=0 does not reflect the spontaneous development of charge density modulations but may instead signal an isotropic-to-nematic liquid crystal phase transition.

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K. B. Cooper, M. P. Lilly, J. P. Eisenstein, L. N. Pfeiffer, K. W. West. 2002-03-07. The Onset of Anisotropic Transport of Two-Dimensional Electrons in High Landau Levels: An Isotropic-to-Nematic Liquid Crystal Phase Transition?. https://doi.org/10.1103/physrevb.65.241313

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