The Nature of the Hall Insulator

Abstract

We have conducted an experimental study of the linear transport properties of the magnetic-field induced insulating phase which terminates the quantum Hall (QH) series in two dimensional electron systems. We found that a direct and simple relation exists between measurements of the longitudinal resistivity, ${\rho }_{xx}$, in this insulating phase and in the neighboring QH phase. In addition, we find that the Hall resistivity, ${\rho }_{xy}$, can be quantized in the insulating phase. Our results indicate that a close relation exists between the conduction mechanism in the insulator and in the QH liquid.

RevTeX, 4 pages, 4 figures

References in corpus (1)

• Evidence for charge-flux duality near the quantum Hall liquid to insulator transition

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