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Metal-insulator transition in a multilayer system with a strong magnetic field

X. R. Wang·C. Y. Wong·X. C. Xie
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Abstract

We study the Anderson localization in a weakly coupled multilayer system with a strong magnetic field perpendicular to the layers. The phase diagram of 1/3 flux quanta per plaquette is obtained. The phase diagram shows that a three-dimensional quantum Hall effect phase exists for a weak on-site disorder. For intermediate disorder, the system has insulating and normal metallic phases separated by a mobility edge. At an even larger disorder, all states are localized and the system is an insulator. The critical exponent of the localization length is found to be $ν=1.57\pm0.10$.

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X. R. Wang, C. Y. Wong, X. C. Xie. 1999-04-26. Metal-insulator transition in a multilayer system with a strong magnetic field. https://doi.org/10.1103/physrevb.59.r5277

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