Girvin-MacDonald-Platzman collective mode at general filling factors: Magneto-roton minimum at half-filled Landau level

K. Park, J. K. Jain

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The single mode approximation is useful for the excitation spectrum at ν = 1/3. This is applied to general fractions and found that it predicts n magneto-roton minima in the dispersion of the Girvin-MacDonald-Platzman collective mode for the fractional quantum Hall states at ν = n/(2n+1). It is shown that there is one magneto-roton minimum for both the composite Fermi sea and the paired composite fermion state.

Original languageEnglish (US)
Pages (from-to)353-357
Number of pages5
JournalSolid State Communications
Volume115
Issue number7
DOIs
StatePublished - Jul 4 2000

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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