Skyrmions in Higher Landau Levels

Abstract

We calculate the energies of quasiparticles with large numbers of reversed spins (``skyrmions'') for odd integer filling factors 2k+1, k is greater than or equals 1. We find, in contrast with the known result for filling factor equals 1 (k = 0), that these quasiparticles always have higher energy than the fully polarized ones and hence are not the low energy charged excitations, even at small Zeeman energies. It follows that skyrmions are the relevant quasiparticles only at filling factors 1, 1/3 and 1/5.

10 pages, RevTex

References in corpus (3)

• Quantum Ferromagnetism and Phase Transitions in Double-Layer Quantum Hall Systems
• Hund's Rule for Composite Fermions
• Fractional Quantum Hall States in Low-Zeeman-Energy Limit

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• The anisotropic conductivity of two-dimensional electrons on a half-filled high Landau level