Laughlin liquid to charge-density-wave transition at high Landau levels

被引:99
作者
Fogler, MM
Koulakov, AA
机构
[1] Theoretical Physics Institute, University of Minnesota, Minneapolis, MN 55455
来源
PHYSICAL REVIEW B | 1997年 / 55卷 / 15期
关键词
D O I
10.1103/PhysRevB.55.9326
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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 nu(N)=1/3 and 1/5. The charge-density-wave period has been optimized and was found to be similar or equal to 3.3R(c), where R-c 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 greater than or equal to 2 at nu(N)=1/3 and for N greater than or equal to 3 at nu(N)=1/5. This implies that the 1/3 quantum Hall plateaus cannot be observed for N greater than or equal to 2, in agreement with the experiment.
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页码:9326 / 9329
页数:4
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