Solitons in the linear-chain antiferromagnet

K. M. Leung, Daniel W. Hone, D. L. Mills, P. S. Riseborough, S. E. Trullinger

    Research output: Contribution to journalArticlepeer-review


    We show that in quasi-one-dimensional antiferromagnets, sine-Gordon solitons should be present as thermal excitations under a range of conditions outlined here. For a class of model spin Hamiltonians which include the influence of a transverse Zeeman field and easy-plane anisotropy, we provide explanations for the soliton rest energy, and its limiting velocity. Also, we examine the statistical mechanics of these systems with emphasis on the form of the soliton contribution to the free energy.

    Original languageEnglish (US)
    Pages (from-to)4017-4026
    Number of pages10
    JournalPhysical Review B
    Issue number9
    StatePublished - 1980

    ASJC Scopus subject areas

    • Condensed Matter Physics


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