Quantum and classical dynamics in mixed-spin one-dimensional antiferromagnets

A. Zheludev, S. Maslov, T. Yokoo, S. Raymond, S. E. Nagler, J. Akimitsu

Research output: Contribution to journalReview articlepeer-review


Mixed-spin systems composed of quantum spin chains with gapped magnetic excitations interacting through 'auxiliary' magnetic ions show an effective separation between low-frequency classical and high-frequency quantum spin correlations. This phenomenon is realized in a family of rare-earth nickelates. Studies of these materials enable experimental measurements of some previously inaccessible fundamental properties of quantum spin chains to be made. The non-trivial intrinsic dynamics of the auxiliary spins gives rise to peculiar excitations of a mixed nature, and in certain cases may play a key role in long-range magnetic ordering.

Original languageEnglish (US)
Pages (from-to)R525-R536
JournalJournal of Physics Condensed Matter
Issue number27
StatePublished - Jul 9 2001
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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