Large skyrmions in an quantum well

S. Shukla, M. Shayegan, S. Parihar, S. Lyon, N. Cooper

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

We report tilted-field magnetotransport measurements of two-dimensional electron systems in a 200-Å-wide (Formula presented) quantum well. We extract the energy gap for the quantum Hall state at Landau-level filling (Formula presented) as a function of the tilt angle. The relatively small effective Landé g factor (Formula presented) of the structure leads to skyrmionic excitations composed of the largest number of spins yet reported (Formula presented) Although consistent with the skyrmion size observed, Hartree-Fock calculations, even after corrections, significantly overestimate the energy gaps over the entire range of our data.

Original languageEnglish (US)
Pages (from-to)4469-4472
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume61
Issue number7
DOIs
StatePublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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