Journal
PHYSICAL REVIEW B
Volume 65, Issue 24, Pages -Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.65.241313
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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-parallel to is applied. Under these conditions we find that the longitudinal resistivity scales quasilinearly with B-parallel to/T. These observations support the notion that the onset of anisotropy at B-parallel to=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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