Resistance oscillations by electron-nuclear spin coupling in microscopic quantum hall devices

Go Yusa, Katsushi Hashimoto, Koji Muraki, Tadashi Saku, Yoshiro Hirayama

Research output: Contribution to journalArticle

Abstract

We study electron-nuclear spin coupled systems implemented in microscopic fractional quantum Hall (FQH) devices. We find that the longtitudinal resistance in such systems oscillates with a period of about ∼200 s and is driven by a constant voltage instead of a constant current. This 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
Pages (from-to)2669-2671
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume44
Issue number4 B
DOIs
Publication statusPublished - 2005 Apr 1
Externally publishedYes

Keywords

  • Electron spin
  • Nanotechnology
  • Nuclear magnetic resonance
  • Nuclear spin
  • Quantum Hall effect
  • Quantum computer
  • Semiconductor

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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