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The Spin Configuration of Fractional QHE Ground States in the N=0 Landau Level

  • P. A. Maksym
  • R. G. Clark
  • S. R. Haynes
  • J. R. Mallett
  • J. J. Harris
  • C. T. Foxon
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 87)

Abstract

Current opinion is that FQHE ground states seen in the N=0 Landau level are fully spin polarized. No one has seriously questioned this, despite theoretical evidence to the contrary /1/ and observation of anomalies in the 1+(2>v>1) fractions /2/. The purpose of the present work is to demonstrate that the spin behaviour is not so simple: fully polarized ground states are not favourable throughout the full range of filling factor and magnetic field. Furthermore, the measured activation energies have a large Zeeman component in place of the expected Coulomb gap.

Keywords

Landau Level Pair Correlation Function Spin Configuration Zeeman Energy Hybrid Magnet 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • P. A. Maksym
    • 1
  • R. G. Clark
    • 2
  • S. R. Haynes
    • 2
  • J. R. Mallett
    • 2
  • J. J. Harris
    • 3
  • C. T. Foxon
    • 3
  1. 1.Department of PhysicsUniversity of LeicesterLeicesterUK
  2. 2.Clarendon LaboratoryUniversity of OxfordOxfordUK
  3. 3.Philips Research LaboratoriesRedhill, SurreyUK

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