Self-sustaining resistance oscillations: Electron-nuclear spin coupling in mesoscopic quantum Hall devices

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Abstract

We study electron-nuclear spin coupled systems implemented in mesoscopic fractional quantum Hall devices. We find that longitudinal resistance in such systems, oscillates with a period of several hundreds of seconds driven by a constant voltage instead of a constant current. The anomalous behavior suggests that an average nuclear spin polarization self-sustainingly oscillates between randomized and polarized states, which reveal the nonlinear nature of the mesoscopic electron-nuclear spin coupled systems.

Original languageEnglish
Article number161302
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number16
DOIs
Publication statusPublished - 2004 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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