Landau-level spin waves and Skyrmion energy in the two-dimensional Heisenberg antiferromagnet

Assa Auerbach, Brond E. Larson, Ganpathy N. Murthy

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A continuum perturbative analysis and the Schwinger-boson mean-field theory are used to evaluate the ground-state energy of the two-dimensional Heisenberg antiferromagnet in the presence of background topological density. The spin-wave spectrum is bunched into Landau levels. The gauge charge of the Schwinger bosons is half the charge of the Holstein-Primakoff spin waves. The mean-field Skyrmion creation energy vanishes with the ordered moment at the disordering transition.

Original languageEnglish
Pages (from-to)11515-11518
Number of pages4
JournalPhysical Review B
Volume43
Issue number13
DOIs
StatePublished - 1991

Funding

FundersFunder number
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China8914045

    ASJC Scopus subject areas

    • Condensed Matter Physics

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