The soliton wavenumber cut-off and the excitation spectrum of the 1-D Heisenberg ferromagnet in the semiclassical continuum approximation

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Abstract

The scheme for the semiclassical quantisation of the solitons of the 1-D continuum Heisenberg ferromagnet is examined. A parameter that can be interpreted as the intrinsic wavenumber Q of a classical soliton is identified. The cut-off restriction that Q lies within the first Brillouin zone has to be added to the continuum model if its results are to be consistently interpreted in terms of an underlying spin S lattice model.

Original languageEnglish (US)
Article number006
Pages (from-to)L831-L835
JournalJournal of physics C: Solid State Physics
Volume15
Issue number24
DOIs
StatePublished - Dec 1 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Engineering(all)
  • Physics and Astronomy(all)

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