Quantum Hall Skyrmions with higher topological charge

D. Lilliehöök, K. Lejnell, A. Karlhede, Shivaji Lal Sondhi

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

We have investigated quantum Hall Skyrmions at filling factor (Formula presented) carrying more than one unit of topological, and hence electric, charge. Using a combination of analytic and numerical methods we find the counterintuitive result that when the Zeeman energy is tuned to values much smaller than the interaction energy (Formula presented)], the creation energy of a charge two Skyrmion becomes less than twice the creation energy of a charge one Skyrmion, i.e., Skyrmions bind in pairs. The doubly charged Skyrmions are stable to further accretion of charge and exhibit a 10% larger spin per unit charge than charge one Skyrmions which would, in principle, signal this pairing.

Original languageEnglish (US)
Pages (from-to)6805-6809
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number11
DOIs
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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