Strong, Ultranarrow Peaks of Longitudinal and Hall Resistances in the Regime of Breakdown of the Quantum Hall Effect

A.M. Song, P. Omling

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With unusually slow and high-resolution sweeps of magnetic field, strong ultranarrow (width down to 100μT) resistance peaks are observed when high currents are applied through quantum Hall samples. The peaks are dependent on the directions and even the history of magnetic field sweeps, indicating the involvement of a very slow physical process. Such a process and the sharp peaks are, however, not predicted by existing theories. We also find that the sharp resistance peaks are influenced by the nuclear spin flips.
Original languageUndefined
Pages (from-to)3145-3148
Number of pages4
JournalPhysical Review Letters
Issue number14
Publication statusPublished - 3 Apr 2000

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