Nuclear spin polarization and relaxation probed by spin phase transition peak

S. Watanabe, Fauzi Mohammad Hamzah, N. Kumada, Yoshiro Hirayama

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We perform resistively-detected nuclear-spin relaxation measurements by using the spin phase transition (SPT) peak in the fractional quantum Hall system at the flling factor ν = 2/3. We investigate nuclear spin relaxation for several electronic systems under a spatially inhomogeneous nuclear spin polarization. When Skyrmions are introduced in the ground state, the position of the SPT peak shifts to higher magnetic feld. This result indicates that Skyrmions relax nuclear spins polarized anti-parallel to the external magnetic feld more effectively than those parallel to the magnetic feld.

Original languageEnglish
Pages (from-to)2570-2573
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume7
Issue number10
DOIs
Publication statusPublished - 2010 Oct 1

Keywords

  • Nuclear spin polarization
  • Nuclear spin relaxation

ASJC Scopus subject areas

  • Condensed Matter Physics

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