Laughlin liquid to charge-density-wave transition at high Landau levels
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چکیده
We compare the energies of the Laughlin liquid and a charge density wave in a weak magnetic field for the upper Landau-level filling factors nN5 1 3 and 1 5. The charge-density-wave period has been optimized and was found to be .3.3Rc , where Rc is the cyclotron radius. We conclude that the optimal charge density wave is lower in energy than the Laughlin liquid for the Landau-level numbers N>2 at nN5 1 3 and for N>3 at nN5 1 5. This implies that the 1 3 quantum Hall plateaus cannot be observed for N>2, in agreement with the experiment. @S0163-1829~97!03916-7#
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تاریخ انتشار 1997