Temperature dependence of the spin polarization of a quantum Hall ferromagnet

M. Manfra, E. Aifer, B. Goldberg, D. Broido

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

The absolute spin polarization of a two-dimensional electron gas has been measured as a function of temperature at the (Formula presented) quantum Hall state by magnetoabsorption spectroscopy. We find that the electrons become fully polarized as (Formula presented) and that the loss of spin polarization over the temperature regime of 500 mK to 12 K is consistent with a recently proposed continuum quantum ferromagnet model of the spin thermodynamics of the (Formula presented) quantum Hall effect state.

Original languageEnglish (US)
Pages (from-to)R17327-R17330
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number24
DOIs
StatePublished - 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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